Meet James Grime - Numberphile Live

[00:02] BRADY HARAN: A pretend

[00:03] Like, you know when you watch

[00:05] and the news presenter have

[00:07] JAMES GRIME: Oh, OK.

[00:08] [INAUDIBLE].

[00:09] BRADY HARAN: Yeah, OK.

[00:10] Interesting.

[00:11] That's an interesting

[00:12] telling me about earlier.

[00:14] JAMES GRIME: It was?

[00:15] BRADY HARAN: OK.

[00:16] Hello everyone.

[00:17] The camera's there.

[00:18] We mustn't look at ourselves.

[00:19] Hello everyone.

[00:20] I'm Brady from "Numberphile",

[00:25] JAMES GRIME: Hello.

[00:26] BRADY HARAN: James is in loads

[00:29] He's the most frequent guest.

[00:31] JAMES GRIME: Can't

[00:32] BRADY HARAN: Can't

[00:33] JAMES GRIME: Bad penny.

[00:34] BRADY HARAN: One of our most

[00:36] And I know a lot of people

[00:38] to hear from him.

[00:39] We've been filming upstairs at

[00:43] five or six videos, we did?

[00:44] JAMES GRIME: Yes,

[00:46] BRADY HARAN: About five or six

[00:48] which will be appearing on

[00:50] months to come.

[00:51] But while James was here, as I

[00:55] thought I would take advantage

[00:58] Valentine's Day.

[00:59] JAMES GRIME: Yeah, isn't it a

[01:01] Valentine's Day together?

[01:04] BRADY HARAN: Yeah, it was an

[01:07] It was the only day

[01:08] JAMES GRIME: What do you

[01:09] And what do you mean it's

[01:11] BRADY HARAN: That wasn't

[01:13] JAMES GRIME: This is

[01:14] BRADY HARAN: Let's stop

[01:16] Let's talk to James about the

[01:19] A bunch of people posted

[01:22] So I'm going to ask a few of

[01:25] chance to be involved, in

[01:27] And obviously you can post

[01:29] We'll be following it, and I'll

[01:31] to James as well.

[01:33] The first thing I thought we

[01:35] lot of people may be aware--

[01:39] that James has his own

[01:41] He's been doing this

[01:42] "Numberphile" has existed.

[01:43] It's called singingbanana.

[01:45] JAMES GRIME: Course it is.

[01:46] BRADY HARAN: I don't want to

[01:48] because I would rather you all

[01:50] James' channel.

[01:51] But a lot of you asked

[01:54] going to ignore it.

[01:54] And it's full of excellent

[01:56] There were three things that

[01:59] The first thing people want to

[02:02] called singingbanana.

[02:04] And then can you also tell us a

[02:07] Because obviously, with all your

[02:09] more sporadic in

[02:11] What's happening with it?

[02:12] What's the status of it?

[02:13] And lastly, a lot of people have

[02:16] I do my things on YouTube, how

[02:20] And so can you tell

[02:21] I mean, I know the answer to

[02:24] tell people those

[02:25] JAMES GRIME: OK.

[02:26] So I do have my own YouTube

[02:29] Of course it is.

[02:29] Why wouldn't it be called

[02:31] No, singingbanana is my online

[02:35] was like 17.

[02:37] So--

[02:38] oh, by the way, if you search

[02:40] another singingbanana online,

[02:43] might not be me.

[02:44] I know there's some other people

[02:46] two words together

[02:49] But it's my online name.

[02:50] So my channel wasn't meant to

[02:54] personal YouTube channel.

[02:56] So that's why it's called

[02:59] I've been doing it for five

[03:02] It will be my fifth year,

[03:05] my first maths video.

[03:07] What were the other questions

[03:09] BRADY HARAN: You were asked

[03:11] What's the situation

[03:12] Because you obviously have a

[03:14] JAMES GRIME: So I do it

[03:16] I don't want people thinking

[03:20] So the YouTube stuff--

[03:22] BRADY HARAN: As opposed to me.

[03:22] JAMES GRIME: Yeah, exactly.

[03:23] Exactly right.

[03:24] So my YouTube stuff is

[03:28] And the more I do public talks

[03:33] and the more "Numberphile" I do,

[03:38] my singingbanana schedule,

[03:41] And I don't like that either.

[03:42] And I want to do as many

[03:46] What was the other question?

[03:47] There was one other.

[03:48] BRADY HARAN: How you

[03:49] JAMES GRIME: [INAUDIBLE].

[03:50] BRADY HARAN: Yeah, how did you

[03:51] "Numberphile"?

[03:52] JAMES GRIME: Well, I know, in

[03:54] periodic videos.

[03:56] So I saw what you were doing for

[04:00] do something like

[04:03] I tried to sort of do it

[04:05] my own small way.

[04:07] And if you go back to an old

[04:11] even on where I recommend

[04:13] And I recommend "Periodic

[04:17] Brady's doing for chemistry what

[04:20] So that's actually there.

[04:23] And so--

[04:23] BRADY HARAN: Now I'm doing

[04:25] want to do for maths.

[04:25] JAMES GRIME: Right.

[04:26] BRADY HARAN: With you.

[04:26] JAMES GRIME: Well,

[04:27] This is brilliant.

[04:29] And I was a big fan of your

[04:35] which was about each book of

[04:37] something I don't know about.

[04:39] Chemistry, physics,

[04:41] And that's something

[04:43] anything about at all.

[04:44] So I was fascinated

[04:47] like an ordinary viewer.

[04:50] And I sent you a couple of nice

[04:52] I'm loving this channel.

[04:53] BRADY HARAN: Yeah.

[04:54] JAMES GRIME: And if you ever

[04:56] ask me about it.

[04:58] And so that opportunity

[05:01] BRADY HARAN: I did.

[05:01] JAMES GRIME: You asked

[05:02] BRADY HARAN: I did.

[05:03] We went to the pub, didn't we?

[05:05] And I said, I'm gonna

[05:06] What do you think?

[05:07] And you were on board.

[05:09] Worst thing you ever did.

[05:10] You can't get rid of me now.

[05:11] JAMES GRIME: No, or the

[05:13] BRADY HARAN: Well, no.

[05:14] We're very glad to have

[05:16] A few other questions.

[05:17] There are loads coming

[05:19] get to some of those.

[05:20] Someone asked, are we both

[05:23] lighting in the room?

[05:24] JAMES GRIME: Look, this

[05:26] This is brown.

[05:28] Look at my eyebrow.

[05:28] This is brown with blonde parts

[05:32] comes out a little big rusty.

[05:34] Yeah it's--

[05:35] BRADY HARAN: Someone else

[05:37] your accent is from.

[05:39] JAMES GRIME: My accent is

[05:41] Nottingham originally.

[05:42] BRADY HARAN: [INAUDIBLE], for

[05:45] based in Nottingham.

[05:45] That's where I work

[05:47] James actually lives

[05:49] JAMES GRIME: Yes.

[05:50] BRADY HARAN: But you are in

[05:51] JAMES GRIME: I am born

[05:54] And I left when I was 17.

[05:58] But I am.

[05:59] This is a midlands accent.

[06:00] It's a fairly neutral accent,

[06:05] side of things.

[06:06] BRADY HARAN: And if anyone's

[06:08] said I live in Nottingham, I am

[06:10] I don't have a Nottingham

[06:12] We had quite a few questions.

[06:14] People asked a lot about

[06:16] But in particular, quite a few

[06:19] you did for your PhD.

[06:21] You obviously have a PhD.

[06:22] Can you tell us a little bit

[06:24] hardcore math was?

[06:25] JAMES GRIME: Right.

[06:25] So my PhD, if I start off in

[06:30] something called group theory.

[06:32] Group theory is part of maths,

[06:35] So it's the maths of symmetry.

[06:36] So if you imagine a square, like

[06:40] square a quarter-turn, you

[06:43] So that's like ordinary

[06:45] If you flipped the square,

[06:49] If I rotate the square four

[06:53] where I started, so

[06:55] That's the symmetry

[06:57] But mathematically speaking,

[07:02] Symmetry means, there's

[07:04] we want to stay the same.

[07:06] So it might be a shape.

[07:07] It might be volume or

[07:11] There's something we

[07:12] want to stay the same.

[07:13] That's group theory.

[07:14] And my PhD was about

[07:17] And it was about turning groups,

[07:20] thing, into matrices, which

[07:24] And it's about making a bridge

[07:27] There you go.

[07:28] That's a start.

[07:28] That's the start of my PhD.

[07:30] And we could go much

[07:33] BRADY HARAN: Well, we might come

[07:35] what everyone asks about.

[07:37] I'll ask you a couple

[07:38] yesterday, and loads of--

[07:40] what were your favorite

[07:42] Were you into mathematics

[07:44] JAMES GRIME: So at school,

[07:47] when I did my A-levels--

[07:48] so that's when you do, 17 to

[07:52] pick A-levels in the UK.

[07:56] I picked maths, physics,

[08:00] Now, maths and physics I picked

[08:03] Those are the subjects that

[08:07] Actually, I wasn't

[08:09] My maths teacher

[08:11] He said, you are doing maths.

[08:12] I said, I don't want

[08:14] He said, you are doing maths.

[08:16] So I picked maths, physics,

[08:20] Chemistry was the one I found

[08:23] I was absolutely fascinated

[08:26] 90% of my time was spent

[08:29] chemistry, because it was the

[08:32] And then 10% of my time was

[08:35] because it came naturally

[08:37] So the answer is, I'm

[08:40] I picked the subject that came

[08:44] But then I continued to do it.

[08:45] And at university, that's when

[08:50] beauty of mathematics, because

[08:53] about is about proof.

[08:55] And that's what you get

[08:57] That's when you start to be

[09:00] mathematics.

[09:02] That's why I continue

[09:04] It's the proof.

[09:05] Proof is [INAUDIBLE].

[09:06] BRADY HARAN: Well, funny you

[09:08] question that's just come in

[09:12] proof is most surprising

[09:15] interesting?

[09:15] Can you talk about a proof that

[09:19] We did a video about a proof

[09:22] But maybe we can keep

[09:24] JAMES GRIME: OK, so I'm

[09:26] with the site then.

[09:28] What mathematical proof?

[09:29] There are some things that

[09:32] And so those are fascinating,

[09:34] that you don't expect.

[09:35] Now, those are fascinating

[09:39] Maths is intuitive.

[09:41] And I want people to

[09:43] Maths is an intuitive subject.

[09:45] What you believe to be

[09:48] not, actually is true.

[09:49] And that's how maths work.

[09:51] Mathematicians are not just

[09:55] They are actually

[09:57] leaps, creative jumps.

[09:58] This is how it should work.

[10:00] This is how it should

[10:02] prove that it is.

[10:04] So you're using your intuition

[10:08] So the majority of maths is

[10:13] So when you get the

[10:16] why mathematicians like

[10:19] I don't want to give people

[10:21] what maths is.

[10:22] But then you get problems like

[10:27] is a game show where you

[10:30] You have to pick the car, and

[10:33] reveals one of the doors.

[10:34] You've got two doors left.

[10:36] And if you change your mind,

[10:39] And that's very

[10:42] counter-intuitive, very bizarre.

[10:44] And then you can prove

[10:48] Mathematicians like to talk

[10:50] BRADY HARAN: I do want to do

[10:52] it's one of those things

[10:53] done so many times.

[10:54] I want to do it in a new way,

[10:57] we're gonna do it yet.

[10:57] JAMES GRIME: It's famous, and

[11:00] because it's good.

[11:01] And you actually learn

[11:03] When you start to see the proof,

[11:04] something from that.

[11:07] BRADY HARAN: You talked before

[11:09] Someone's asked here what grades

[11:12] Where were your high

[11:14] JAMES GRIME: Well, you know

[11:16] You know it's gonna be A's.

[11:17] Yes, I got A's at A-level.

[11:20] In my day-- where's my pipe?

[11:22] In my day, we didn't have

[11:25] A's for A-levels.

[11:26] BRADY HARAN: OK, and

[11:28] asked about your IQ.

[11:29] Have you ever had an IQ test?

[11:32] JAMES GRIME: I have, yes.

[11:33] BRADY HARAN: What'd you get?

[11:34] What's your number?

[11:36] JAMES GRIME: So IQ, OK,

[11:40] However, IQ is not a good

[11:43] And I'm--

[11:44] BRADY HARAN: Oh, you bombed.

[11:45] Yeah, you bombed out.

[11:45] JAMES GRIME: I'm not

[11:47] My IQ, when I was 16, when

[11:52] BRADY HARAN: That's really

[11:53] JAMES GRIME: Yeah.

[11:54] It would put me in the

[11:56] BRADY HARAN: 155.

[11:57] JAMES GRIME: And I don't care,

[12:01] BRADY HARAN: If my IQ was 155,

[12:04] forehead, but anyway.

[12:05] JAMES GRIME: I never want

[12:07] BRADY HARAN: OK.

[12:09] I'll ask you a few random ones,

[12:11] questions like this.

[12:12] JAMES GRIME: Yeah, go on.

[12:12] BRADY HARAN: Someone asked,

[12:14] mathematical symbol?

[12:16] And is there a mathematical

[12:18] for some reason?

[12:18] I don't know what the reason

[12:20] it's hard to wrote, or it's

[12:23] [INAUDIBLE].

[12:25] JAMES GRIME: OK, infinity's

[12:28] I mean, I might just

[12:31] And it has an implication

[12:35] [INAUDIBLE].

[12:35] So there's an intuitive sense

[12:42] It's a well-chosen symbol.

[12:43] I like that one.

[12:45] Ones I don't like?

[12:48] Because, in mathematics, we use

[12:51] of Greek letters that

[12:53] all the Greek viewers now will

[12:57] Greek letters I just don't

[12:59] BRADY HARAN: On "Sixty Symbols,"

[13:01] Greek letters come up, and

[13:03] find them and work with them.

[13:04] So I feel your pain.

[13:05] JAMES GRIME: I apologize

[13:07] BRADY HARAN: Wow.

[13:08] And you've got a 155 IQ.

[13:10] So if you can't do them, what

[13:12] Is there a practical use

[13:15] JAMES GRIME: Oh, right.

[13:16] So Graham's number, this famous

[13:23] came out of a practical

[13:25] It was a mathematical

[13:27] come out of a problem.

[13:29] So I guess it is born

[13:32] And the problem was about

[13:35] A graph is a network

[13:38] that you join together.

[13:39] You take a graph, and how many

[13:44] And it was born out of

[13:48] And networks and graphs have

[13:52] like on the internet and how

[13:56] networks together.

[13:58] So I guess it does have a

[14:02] BRADY HARAN: It's not like some

[14:04] crazy number and then said,

[14:06] JAMES GRIME: Exactly right,

[14:08] I mean, of course you could do

[14:10] adding two.

[14:11] Yeah.

[14:11] No, it's famous because

[14:15] And at that point, it was the

[14:18] been used in a genuine

[14:23] BRADY HARAN: At this point,

[14:25] read of some of the questions,

[14:27] Day, you brought something

[14:30] We have made a video about these

[14:33] featuring James.

[14:34] It was one of our earlier

[14:36] And I'll put it in the video

[14:38] But these are really nice.

[14:39] Maybe you should show these.

[14:40] Hold them up to the camera,

[14:41] a chat about them.

[14:42] JAMES GRIME: OK, so what I've

[14:46] amicable number.

[14:48] Can you see that?

[14:49] Let's see if I can get

[14:51] There we go.

[14:52] These are my amicable number

[14:55] So that's 220 on that one.

[14:58] Can we get a focus?

[14:59] 284 on that one.

[15:02] And so the factors of 220 add

[15:08] of 284 add up to 220.

[15:12] So they come as a pair.

[15:14] And in the past, these would

[15:20] perfect harmony, and love.

[15:22] And so for Valentine's Day,

[15:29] It's a kind of a nerdy thing.

[15:30] But it's a really sweet thing.

[15:33] So we had these made, 220 and

[15:38] So you can keep one and give

[15:41] love, I guess.

[15:44] BRADY HARAN: Can one

[15:47] JAMES GRIME: Shall I, shall I?

[15:48] Yes, you can obtain these.

[15:50] BRADY HARAN: I have no

[15:52] whatsoever.

[15:52] But if people would want to

[15:54] JAMES GRIME: And I'm

[15:56] But Matt Parker and myself--

[16:00] "Numberphile" speaker.

[16:02] Matt Parker and myself, we're

[16:05] So we set up a little company,

[16:10] we were sending these "Amicable

[16:14] and other things as well, a

[16:16] came up with that we thought

[16:19] people might like.

[16:20] And it's called Maths Gear.

[16:23] If I hold this up,

[16:25] BRADY HARAN: You brought that

[16:26] what that was in.

[16:26] You didn't bring it to--

[16:27] JAMES GRIME: Yeah, that's

[16:29] So Math Gear and

[16:32] And yeah, we sell little bits.

[16:35] We're not trying to--

[16:36] BRADY HARAN: [INAUDIBLE].

[16:36] JAMES GRIME: We're not trying

[16:38] BRADY HARAN: If we were trying

[16:39] Day, this is probably the worst

[16:41] because it's too late.

[16:43] You've got a year to get in your

[16:47] Valentine's Day.

[16:47] How's that for poorly

[16:50] Cool.

[16:51] We got loads of questions

[16:54] What do you enjoy doing apart

[16:57] JAMES GRIME: OK, so my hobbies,

[16:59] I spend so much time traveling

[17:03] difficult to do my

[17:06] If you follow my Twitter, I

[17:10] things, because I'm just

[17:12] stations watching films.

[17:14] So I'm a big film fan.

[17:17] I used to do a lot of dancing.

[17:18] I used to do ballroom dancing,

[17:22] little bit.

[17:23] I used to do that.

[17:23] But it's difficult to

[17:26] And juggling is my big hobby.

[17:28] I'm a juggler.

[17:29] So I juggle clubs and balls

[17:35] and rings and uni--

[17:37] I ride a unicycle.

[17:39] And it's one of my things.

[17:41] BRADY HARAN: Fair enough.

[17:43] Obviously someone knew that,

[17:46] was asked to ask you was, is

[17:50] the maximum number of balls

[17:52] So they obviously knew you were

[17:54] amazing coincidence.

[17:56] JAMES GRIME: So theoretical

[17:58] no theoretical limit if, say,

[18:03] man juggling balls.

[18:05] And his hands can be

[18:08] And I think there are

[18:10] And so there'd be no theoretical

[18:12] he'd throw them higher.

[18:14] But there is a physical limit.

[18:16] So the record for juggling

[18:20] It might be 11.

[18:23] Clubs, then, is a little

[18:25] So that would be 11,

[18:27] BRADY HARAN: I thought it might

[18:29] JAMES GRIME: Yeah, clubs, I

[18:31] BRADY HARAN: But the balls, I

[18:32] JAMES GRIME: Oh, yeah,

[18:33] balls might up higher.

[18:35] Yeah, I think it might be 13.

[18:37] I could be wrong about that.

[18:39] But it's not as high as you

[18:43] the physical problem of it.

[18:45] And then, as a friend

[18:49] I have to credit my friend here,

[18:52] Colin Wright.

[18:53] He's a mathematician and

[18:55] And he says that the world

[18:58] is three, because, yeah, given

[19:04] three of them.

[19:05] BRADY HARAN: OK.

[19:06] While we're quickly doing a few

[19:09] because people obviously have

[19:13] ask you your favorite song.

[19:15] JAMES GRIME: Favorite song is

[19:20] Jackson Five.

[19:21] I'm a little bit camp.

[19:23] Sometimes I'm a little

[19:25] BRADY HARAN: You said

[19:26] JAMES GRIME: Sometimes I am.

[19:27] BRADY HARAN: Do you have

[19:29] JAMES GRIME: Favorite shape.

[19:32] Not really, not really.

[19:34] For the sake of an answer,

[19:37] Because it's the limit,

[19:40] triangles and your squares?

[19:42] BRADY HARAN: Do you have a

[19:47] I'm not asking these

[19:48] This is you guys.

[19:52] JAMES GRIME: I can tell you that

[19:57] me The Master.

[19:58] And The Master is Doctor

[20:02] The Master is a time lord in

[20:05] Who's enemy.

[20:06] And they used to call me The

[20:09] short and I'm wearing my black

[20:12] black suit, I look like-- or

[20:16] John Simm from "Doctor Who,"

[20:20] So when I discovered that they

[20:25] amused by that.

[20:26] And I came in the next lecture,

[20:29] microphone by tapping it--

[20:31] [RAPS ON TABLE]

[20:33] JAMES GRIME: And the "Doctor

[20:35] know what that means.

[20:36] I got someone to squeal.

[20:37] I got a squeal from

[20:41] Tick.

[20:42] BRADY HARAN: And you got a

[20:44] JAMES GRIME: Yeah, you don't

[20:45] BRADY HARAN: I don't know what

[20:46] Do you have a favorite

[20:49] JAMES GRIME: A favorite

[20:50] OK, all right.

[20:53] On my office wall, there are

[20:56] mathematicians.

[20:59] There's a picture of a man

[21:02] the father of what I study

[21:05] And many people won't

[21:06] He lived about 100 years ago.

[21:10] There's a picture

[21:12] Tom Lehrer was a mathematician

[21:15] the 1960s, a comedian.

[21:17] He used to do satirical songs.

[21:20] And I love him.

[21:21] I think he's great.

[21:22] The fact that he's a

[21:26] He's brilliant.

[21:26] And I've got a picture of

[21:29] And the third picture is a

[21:31] And Johnny Ball was a-- he

[21:37] when I was a kid.

[21:38] So he was enthusiastic, and he

[21:42] And he loved maths, and he

[21:46] wanted to show you maths.

[21:47] And he inspired me to continue

[21:54] interest in maths when I would

[21:59] sort of thing before.

[22:01] And you may be able to see that

[22:06] why I do what I do now.

[22:07] And you may even be

[22:11] BRADY HARAN: So many people have

[22:15] that we're going to

[22:16] I've only got some cricket

[22:19] So what do you want?

[22:19] Two baseballs and

[22:20] JAMES GRIME: Yeah, sure.

[22:24] Have to keep them low as well.

[22:25] BRADY HARAN: You will.

[22:27] There you go.

[22:27] JAMES GRIME: [INAUDIBLE].

[22:29] Right.

[22:30] So I'll get my excuses in now.

[22:32] BRADY HARAN: If you do

[22:34] JAMES GRIME: Oh,

[22:37] So that's your simple stuff.

[22:38] But you know, you can go--

[22:39] BRADY HARAN: Oh yeah.

[22:40] JAMES GRIME: And stuff

[22:41] [INAUDIBLE].

[22:44] You're up.

[22:44] Get off to it.

[22:45] BRADY HARAN: I'm impressed.

[22:48] JAMES GRIME: [INAUDIBLE].

[22:49] There you go.

[22:49] BRADY HARAN: All right,

[22:54] JAMES GRIME: Hey.

[22:55] BRADY HARAN: There we go.

[22:56] You want to see one

[22:57] JAMES GRIME: Whoa, whoa.

[22:58] Yeah, I'm nervous when

[23:00] cricket ball in my direction.

[23:02] BRADY HARAN: It's completely

[23:04] We'll have to get you doing some

[23:06] juggling for a video.

[23:07] We'll find an excuse sometime.

[23:08] JAMES GRIME: We'll

[23:10] BRADY HARAN: Let's get

[23:13] after that little interlude.

[23:14] Favorite number?

[23:16] JAMES GRIME: Favorite number.

[23:16] Of course everyone asks your

[23:19] really have a favorite number.

[23:21] BRADY HARAN: What if I said,

[23:23] throw this cricket

[23:23] JAMES GRIME: OK, in that case,

[23:28] Where would we be without

[23:31] BRADY HARAN: Fair enough.

[23:32] The next question was, do you

[23:33] between 1 and 100?

[23:34] So you've also covered

[23:36] JAMES GRIME: Tick.

[23:36] BRADY HARAN: I'll cross

[23:39] Do you want to quickly

[23:42] your current job is?

[23:42] A lot of people will have seen

[23:45] with you in which you were

[23:49] And that is a big part of your

[23:51] So maybe you want to tell people

[23:53] is these days.

[23:53] I'll get you to come in.

[23:54] JAMES GRIME: Yeah,

[23:55] BRADY HARAN: Go ahead.

[23:56] JAMES GRIME: So my real job.

[23:58] So my day job is, I travel the

[24:03] I give public talks

[24:05] And I'm trying to inspire, I'm

[24:09] And I might talk to children,

[24:13] And it might be in schools,

[24:15] universities.

[24:15] It might be in festivals.

[24:18] Enigma is the one I like

[24:21] So we have that machine

[24:26] And it's one of the most

[24:29] brilliant stories that

[24:33] And that's the majority

[24:35] I do that a lot.

[24:38] BRADY HARAN: You have am Enigma

[24:40] lent to you or to the--

[24:42] JAMES GRIME: Yeah, the

[24:44] belongs to Simon Singh.

[24:46] And Simon Singh is an author

[24:50] And he lent it to Cambridge

[24:54] turn, to me so that I can

[24:57] people about it.

[24:59] BRADY HARAN: Do you

[25:00] Do you play games?

[25:01] JAMES GRIME: I'm guessing

[25:02] online computer games.

[25:04] BRADY HARAN: I don't know.

[25:06] Let's open it to everything.

[25:07] First of all, do you play

[25:10] JAMES GRIME: Computer games, I

[25:14] I'm a casual gamer.

[25:16] I play the 10 minutes of games,

[25:19] Birds." And I've got an Atari

[25:24] And I play "Space Invaders."

[25:25] BRADY HARAN: A proper

[25:27] JAMES GRIME: Well, it's

[25:28] put it inside a joystick.

[25:29] So you plug it straight

[25:31] BRADY HARAN: Cool.

[25:31] JAMES GRIME: And it's got "Super

[25:35] Invaders" and "Galaga." I like

[25:39] "Galaga." You can't beat

[25:40] BRADY HARAN: And do

[25:43] what I call them,

[25:45] JAMES GRIME: Real-life games.

[25:47] Real-life games.

[25:48] BRADY HARAN: I don't know

[25:49] I don't know.

[25:50] JAMES GRIME: What?

[25:50] What are you saying, tag?

[25:51] BRADY HARAN: Non-electrical

[25:53] Do you play--

[25:54] you know what I'm asking.

[25:56] Answer the question.

[25:59] JAMES GRIME: Oh, like,

[26:02] That's all I can think

[26:04] Oh, role-playing games,

[26:06] OK, so I'm not really

[26:08] So I guess not.

[26:10] Role-playing, board games, I

[26:14] I'm not really into it.

[26:14] BRADY HARAN: Any sports

[26:16] JAMES GRIME: Any sports?

[26:17] Nah.

[26:18] BRADY HARAN: There's a

[26:20] play all the time.

[26:22] JAMES GRIME: If you

[26:23] I play sport if you count bar

[26:26] BRADY HARAN: You're obsessed

[26:27] You always talk to

[26:29] JAMES GRIME: I am obsessed.

[26:29] BRADY HARAN: You want to

[26:30] JAMES GRIME: I do.

[26:31] I would love to make a video

[26:33] Bar billiards is an

[26:35] BRADY HARAN: What is

[26:35] those who don't know?

[26:36] JAMES GRIME: Bar billiards, so

[26:39] got cues and a table

[26:42] And so snooker is a sort of

[26:45] But bar billiards is, you

[26:50] You have to get them

[26:52] The holes are in the table.

[26:53] They're not pockets

[26:54] They're in the table.

[26:55] You get points.

[26:56] So you score as many

[26:59] And you have to score

[27:01] you can in 30 minutes.

[27:02] And it's awesome.

[27:04] It's brilliant.

[27:05] BRADY HARAN: People have asked

[27:08] have a preference for

[27:10] JAMES GRIME: Oh, I guess

[27:12] But I do play chess.

[27:14] Not that brilliant at it.

[27:16] I used to play chess

[27:18] It was a nice thing

[27:19] We used to have a chess board

[27:23] And we had a counter that

[27:25] black on the other.

[27:26] So you'd play a move

[27:29] Then the next, we'd come in

[27:33] We rigged it up.

[27:35] I really enjoyed doing that.

[27:37] BRADY HARAN: People have asked

[27:40] comments and the chats and

[27:43] You're obviously in lots

[27:45] "Numberphile".

[27:45] Do you read comments?

[27:47] JAMES GRIME: I read all the

[27:50] the comments and the

[27:53] And I'm not always able

[27:55] Even if I did, I mean, I

[27:58] to answer them all.

[27:59] I'm sorry.

[28:00] And then on the "Numberphile"

[28:04] So yes.

[28:07] I was considering denying

[28:09] makes me less cool.

[28:10] But no, I check.

[28:10] I don't check them

[28:17] Yeah, what are you pointing

[28:20] BRADY HARAN: There is someone

[28:23] and the name James

[28:25] And we should point out,

[28:27] That is just some--

[28:28] well, I won't use unsuitable

[28:30] But that's someone who is--

[28:31] JAMES GRIME: It's not me.

[28:32] BRADY HARAN: --who is

[28:33] And that's not James.

[28:34] And I personally don't think

[28:38] But who am I?

[28:38] I'm just some guy,

[28:41] Someone asked a question a bit

[28:43] And that is, when your life is

[28:48] find yourself just doing,

[28:52] counting the number of times you

[28:56] looking at a shape or a house

[28:59] and equations?

[29:01] JAMES GRIME: No, not really.

[29:03] I mean, we talked about

[29:06] arithmomania and things like

[29:08] the number of steps.

[29:09] And that's a real condition.

[29:10] There are people who do that.

[29:11] I don't think mathematicians, as

[29:16] I certainly do not.

[29:18] But maybe you're asking, maybe

[29:21] the world and see

[29:24] and things like that?

[29:25] And do you know, no,

[29:30] BRADY HARAN: I mean, I'm not

[29:31] questions, because you know,

[29:34] you're your own man, but I do

[29:37] you wear to bed?

[29:40] JAMES GRIME: OK.

[29:42] BRADY HARAN: Just because I

[29:43] Most of the questions

[29:46] JAMES GRIME: Oh, right.

[29:47] OK, well, I guess--

[29:51] I'm considering lying.

[29:52] But I'll just tell you

[29:53] Shall I?

[29:54] BRADY HARAN: Because they're,

[29:56] That would be so cool.

[29:57] JAMES GRIME: No.

[29:58] I just wear the t-shirt that

[30:02] And then--

[30:03] BRADY HARAN: I've never

[30:04] You're always wearing a shirt.

[30:05] JAMES GRIME: [INAUDIBLE].

[30:05] BRADY HARAN: Oh yeah, OK.

[30:06] Fair enough.

[30:08] A lot of people have asked, do

[30:12] 12, base 16, or decimal?

[30:15] JAMES GRIME: Base 12,

[30:19] Do you know what?

[30:20] Preference, I'm quite convinced

[30:23] by the base 12 people.

[30:26] I like their arguments.

[30:28] They're not grand--

[30:31] you know, it doesn't change

[30:34] in a fundamental way.

[30:35] But the day-to-day use of it, I

[30:41] I wish we did have base 12.

[30:44] Time would still be the same,

[30:49] should go back to

[30:51] And it'd be brilliant.

[30:52] BRADY HARAN: If you're

[30:53] "Numberphile", we did a--

[30:55] JAMES GRIME: Yeah, we did.

[30:55] BRADY HARAN: --base 12 video

[30:58] pros and cons of

[31:00] And again, well worth

[31:02] And I'll put a link in the

[31:04] JAMES GRIME: Sure.

[31:05] Because I like them, I'm going

[31:08] That was the-- was

[31:10] society of America?

[31:11] And they have a Twitter

[31:13] Now you have to watch

[31:15] And every day, they give you

[31:19] And I really enjoy those.

[31:21] BRADY HARAN: Well, they do one

[31:23] JAMES GRIME: Yeah,

[31:23] BRADY HARAN: They should

[31:24] like, 12th day or something.

[31:26] JAMES GRIME: Every 12 hours?

[31:27] BRADY HARAN: Oh yeah, that's

[31:29] Yeah.

[31:30] OK, do you have a favorite

[31:33] And maybe you could quickly

[31:36] think it's really interesting.

[31:37] And it's not something we've

[31:40] How is mathematics broken into

[31:45] Like, in chemistry, we have

[31:47] physical and things like that.

[31:49] How do you break maths up?

[31:50] And then what do you like?

[31:52] JAMES GRIME: Yeah.

[31:52] So maths is broken up in the

[31:56] So maths is broken up into--

[31:59] well, we've got pure maths.

[32:00] Let's start with pure maths.

[32:01] And that's what I do.

[32:02] I'm a pure mathematician,

[32:04] And then that's broken up into

[32:08] Now, I do algebra.

[32:10] And from my point, I think

[32:12] the big picture.

[32:13] It's about large mathematical

[32:18] about the details.

[32:19] So it looks at the real number,

[32:21] in details.

[32:22] And I'm more about algebra

[32:25] There's statistics, which I'm

[32:30] probability statistics.

[32:32] And then there's mathematical

[32:35] nature, which I don't really

[32:40] BRADY HARAN: OK, I'm

[32:44] There's been a bit asked.

[32:45] And you probably are a good

[32:47] because you spend so

[32:50] schools and meeting students.

[32:52] And we've done a few videos-- on

[32:56] was, that I did some videos,

[33:00] mathematics has this reputation

[33:04] permeates society,

[33:06] It's almost a joke, isn't it?

[33:08] That, oh no, I've got maths,

[33:10] And it puts people off.

[33:12] There's a real stigma

[33:14] What do you think about the

[33:18] the reputation of mathematics

[33:22] are just kind of at crucial

[33:24] JAMES GRIME: Yeah.

[33:24] So this idea about maths is

[33:29] cultural problem.

[33:31] So it's not true in other places

[33:34] And things like, you know, it's

[33:36] a girls' subject, this

[33:40] And there's absolutely

[33:43] But there is that reputation.

[33:45] I don't want to speak

[33:47] I'm not a maths teacher.

[33:49] I'm not a teacher.

[33:50] I don't want to speak

[33:53] I am what I am.

[33:55] I'm an academic who, sometimes

[33:59] And I enjoy doing so.

[34:01] So I don't want to speak

[34:04] But there are things that can

[34:08] lot of people who care about

[34:12] there are things that

[34:14] They know what could be

[34:16] trying to do that.

[34:18] And in a small part, I'm trying

[34:23] showing how maths can

[34:26] and motivate people.

[34:29] I have my part as well.

[34:32] But there are better people who

[34:35] better than I do.

[34:37] And I don't want to

[34:41] BRADY HARAN: A few quick ones.

[34:43] Pi or tau?

[34:47] JAMES GRIME: Do you know what?

[34:50] "Numberphile" has slightly

[34:52] your "Numberphile" pi and tau

[34:58] Moriarty in it--

[34:59] BRADY HARAN: Yes,

[35:00] JAMES GRIME: Yeah.

[35:02] I was gonna say, I

[35:04] Pi's fine.

[35:05] I mean, there is absolutely no

[35:11] It makes sense as it is.

[35:14] And Professor Moriarty said one

[35:18] It was, tau is a full turn, and

[35:23] a turn, a half-turn, three

[35:26] Tau is a turn that--

[35:29] yeah, that convinced me-- for

[35:31] I was pretty ambivalent

[35:35] But we'll give that to

[35:37] BRADY HARAN: What a great

[35:39] I hope you'll all go and

[35:40] And I'll put the link below.

[35:41] And Professor Moriarty would

[35:44] endorsement.

[35:44] How many digits can

[35:46] I'm not putting you

[35:47] Someone just--

[35:48] JAMES GRIME: Oh, to the

[35:51] 3.141592654.

[35:57] Something like that.

[35:57] BRADY HARAN: Oh, I don't know.

[35:58] I don't know, so [INAUDIBLE].

[35:58] JAMES GRIME: Something

[35:59] BRADY HARAN: I'm sure we'll hear

[36:00] of those wrong.

[36:02] Favorite food?

[36:04] JAMES GRIME: Favorite food?

[36:04] I like Chinese.

[36:06] BRADY HARAN: Oh yeah,

[36:07] There's a really good Chinese

[36:10] JAMES GRIME: Yeah?

[36:11] BRADY HARAN: There is.

[36:11] Oh, but you're going back to

[36:13] But if you want to stay for a

[36:16] sort you out.

[36:16] It's up to you.

[36:18] Favorite color?

[36:20] JAMES GRIME: Nothing in

[36:23] Yellow.

[36:23] I like yellow.

[36:25] BRADY HARAN: Why?

[36:25] JAMES GRIME: It's a bright,

[36:28] And I like the bright.

[36:31] I have a short attention

[36:33] bright shiny things.

[36:34] Yellow sunshine yes.

[36:36] BRADY HARAN: OK.

[36:38] Can you solve a Rubik's Cube?

[36:40] JAMES GRIME: Yes.

[36:40] BRADY HARAN: And how quickly?

[36:42] JAMES GRIME: Yes, but badly.

[36:43] BRADY HARAN: You know,

[36:44] JAMES GRIME: Yeah, I can

[36:46] minutes, I'm afraid.

[36:47] I'm not clever.

[36:48] BRADY HARAN: We're not gonna

[36:50] JAMES GRIME: No, no.

[36:51] I know the beginner's method.

[36:52] And it takes me a long time.

[36:55] But I learned to solve the

[36:59] I learned to solve it because

[37:05] visual aid to teach group

[37:07] is my area of maths.

[37:09] And the Rubik's Cube is an

[37:13] So I'm learned it as a prop.

[37:17] And I'm not very good at it.

[37:19] BRADY HARAN: This is an

[37:22] Answer carefully.

[37:23] Favorite YouTube?

[37:25] What YouTube channels

[37:26] JAMES GRIME: [INAUDIBLE].

[37:27] BRADY HARAN: That's interesting

[37:27] to hear about, yeah.

[37:29] JAMES GRIME: Do you want me to

[37:31] non-science ones?

[37:33] BRADY HARAN: Go.

[37:34] The question just says,

[37:36] So you go ahead.

[37:38] JAMES GRIME: All right,

[37:39] So Brady aside then.

[37:42] BRADY HARAN: No, no, no.

[37:43] No no no.

[37:45] JAMES GRIME: [INAUDIBLE]

[37:46] videos.

[37:46] BRADY HARAN: You can just say

[37:48] forget about it.

[37:48] JAMES GRIME: Yeah.

[37:49] And "Bibledex" and things

[37:53] The maths channels--

[37:54] and I hope they'll like this.

[37:56] Of course we know Vihart

[38:00] BRADY HARAN: Yes.

[38:00] JAMES GRIME: And then there's

[38:03] A couple of my favorites

[38:05] well-known is Ty Yann.

[38:07] He's a maths teacher

[38:10] And he does mathematical

[38:12] Ty Yann, T-Y Y-A-N-N, Ty Yann.

[38:16] And then Dr. James Stan--

[38:19] Tanton sorry.

[38:20] I always get his S mixed up.

[38:23] Dr. James Tanton, I think he

[38:28] And he has some fascinating,

[38:31] I love him.

[38:33] And people will be less

[38:36] And then if you talk about

[38:41] lots of favorite ones, some of

[38:44] BRADY HARAN: We're about

[38:45] JAMES GRIME: I'm gonna say

[38:47] BRADY HARAN: Hang on.

[38:48] I've got a power cable.

[38:49] We're about to run

[38:51] JAMES GRIME: I've been

[38:52] BRADY HARAN: No, no, no.

[38:53] Do you know what?

[38:54] It was my fault.

[38:54] When we started, I said

[38:56] plug the power in.

[38:57] And then I didn't.

[38:58] We just got the [INAUDIBLE].

[38:59] JAMES GRIME: All right,

[39:01] BRADY HARAN: This is putting

[39:02] more prominence on--

[39:03] JAMES GRIME: Hello.

[39:03] BRADY HARAN: --me.

[39:04] Yeah.

[39:05] JAMES GRIME: A couple

[39:07] say hello to at You--

[39:08] I am a YouTuber, so

[39:11] Mismag822, the magician,

[39:14] Ericsurf6 hello.

[39:16] And other favorite

[39:20] CommunityChannel Natalie.

[39:21] Nat right?

[39:23] I am absolutely in

[39:26] OK.

[39:27] BRADY HARAN: Well, now

[39:28] I wasn't gonna bring it up.

[39:29] But you say you're in

[39:30] There have been loads of

[39:34] availability or otherwise.

[39:36] I'm just saying, there's been

[39:37] You can say what you want.

[39:39] JAMES GRIME: Are they offers?

[39:40] Or are they just questions?

[39:42] BRADY HARAN: I wouldn't

[39:44] I don't know if it's just a kind

[39:48] intent or not.

[39:50] But I'm just saying, there's

[39:52] And I'm not saying anything.

[39:54] JAMES GRIME: Well,

[39:55] yeah, here I am.

[39:56] This is me.

[39:58] BRADY HARAN: Have you ever

[40:00] I guess that they're asking

[40:02] Tower picture behind.

[40:02] This is actually my

[40:04] So that would have

[40:05] JAMES GRIME: So yeah, you

[40:06] And I haven't been to

[40:08] BRADY HARAN: You've never been

[40:09] JAMES GRIME: No, I haven't

[40:13] Look at this case.

[40:14] BRADY HARAN: It's very close.

[40:15] JAMES GRIME: Look at his face.

[40:16] BRADY HARAN: It's very

[40:17] I mean, I grew up in Australia

[40:18] to the Eiffel Tower.

[40:22] Well, that's a good question

[40:24] Favorite country to visit?

[40:25] Because obviously you have

[40:27] JAMES GRIME: Yeah.

[40:27] BRADY HARAN: Even if you haven't

[40:29] is like a stone's throw away.

[40:32] JAMES GRIME: Favorite country.

[40:33] Two of my favorite countries,

[40:38] Scandinavia Sweden Denmark.

[40:40] I lived in Denmark for

[40:43] BRADY HARAN: I didn't

[40:44] JAMES GRIME: Yeah.

[40:46] [INAUDIBLE].

[40:50] That's for the Danish viewers.

[40:52] BRADY HARAN: Same from me.

[40:54] A lot of people, actually--

[40:55] I know these

[40:57] are a little bit boring.

[40:58] But we get asked them a lot, so

[41:01] A lot of people have asked about

[41:04] JAMES GRIME: Ooh, favorite

[41:06] BRADY HARAN: And they've also

[41:08] some TV shows that involve

[41:11] "Numb3rs."

[41:12] JAMES GRIME: Yeah, like

[41:14] "Numb3rs" on DVD.

[41:15] I've got the box set, because

[41:18] So I get box sets and

[41:21] programs as I'm traveling.

[41:22] And I've got "Numb3rs."

[41:25] first couple of series.

[41:26] I'm told the first couple of

[41:30] goes downhill.

[41:31] So I've got that to

[41:33] And I liked what they did.

[41:35] So they were showing

[41:40] people who can't communicate,

[41:43] those horrible cliches

[41:47] They were showing a

[41:51] brilliant and perfectly

[41:55] could help--

[41:57] in the shows-- help

[41:58] And the maths was good maths.

[42:00] It's all genuine maths.

[42:02] And it had mathematicians help

[42:06] check it's good.

[42:08] BRADY HARAN: So it's got a

[42:10] JAMES GRIME: Yeah, I like

[42:12] seen so far.

[42:15] BRADY HARAN: If I can

[42:17] JAMES GRIME: Yeah.

[42:18] BRADY HARAN: Someone has asked,

[42:22] possibly having a Chinese and

[42:26] Valentine's Day--

[42:27] and this is a fair point.

[42:29] And you have mentioned some of

[42:31] this is a chance for me

[42:34] If you would like to subscribe

[42:37] "Numberphile" very happy,

[42:41] Kylie K-Y-L-I-E Caravan,

[42:46] you know how to spell

[42:47] Go and subscribe to her, and

[42:51] it's a brand-new channel.

[42:52] And I'm helping the video,

[42:56] of class about it.

[42:57] But if there's a sudden spike

[43:00] because of all you guys, that

[43:04] taken care of.

[43:04] Kylie Caravan.

[43:06] Getting back to the man.

[43:08] By the way, James has been

[43:12] week and a half.

[43:12] That's the reason he wasn't

[43:15] JAMES GRIME: This is a

[43:16] BRADY HARAN: --biggest prime--

[43:16] OK.

[43:16] JAMES GRIME: [COUGHS]

[43:17] BRADY HARAN: That's why he

[43:19] biggest prime number video.

[43:20] JAMES GRIME: Yeah.

[43:20] I was really annoyed.

[43:21] BRADY HARAN: And it's amazing

[43:23] to help out [INAUDIBLE].

[43:25] You've been really struggling

[43:27] obviously the web cam has just

[43:29] So kudos to you for

[43:31] JAMES GRIME: Yeah, that's

[43:34] But I was ill.

[43:35] And I was really disappointed

[43:37] video last week, because

[43:40] to be in that one.

[43:41] BRADY HARAN: Oh, I like that.

[43:42] Do you prefer even

[43:44] JAMES GRIME: That's

[43:48] Even the fact that I said

[43:50] question is a bit nerdy.

[43:53] Do you know what?

[43:54] Off instinct, even numbers.

[43:56] What does that say about me?

[43:58] BRADY HARAN: You like

[44:00] JAMES GRIME: I like order.

[44:02] That's what it says about

[44:03] BRADY HARAN: Yeah, I probably

[44:04] even, because your favorite

[44:06] You're more the kind of the

[44:09] edgy odd-number kind of guy.

[44:11] JAMES GRIME: Off-kilter

[44:12] BRADY HARAN: Yeah.

[44:14] Someone has asked, do you

[44:16] For those who didn't see the

[44:18] don't already watch James' other

[44:21] singingbanana.

[44:22] And he's been doing that for

[44:24] And it's an ex--

[44:26] watch my videos first, but if

[44:30] channel and him doing a few of

[44:32] to singingbanana.

[44:33] JAMES GRIME: It's home-made.

[44:34] BRADY HARAN: As long as you've

[44:36] Caravan, of course, because

[44:38] JAMES GRIME: Yeah, reduce your

[44:40] home-made channel.

[44:42] BRADY HARAN: Yours is more,

[44:44] [INAUDIBLE].

[44:44] JAMES GRIME: And it's

[44:46] YouTube, I like to think.

[44:49] I'm just a YouTuber.

[44:51] I am one of you.

[44:55] BRADY HARAN: There's another

[44:57] couple of times.

[44:57] And it's a question for you, but

[44:59] of a future video I've been

[45:02] I've been waning to talk

[45:04] Some people have asked what math

[45:09] one-liners and that you

[45:11] And I know you love

[45:12] But I was thinking we should do

[45:16] So if you've got any maths jokes

[45:18] like, put them in

[45:20] JAMES GRIME: Send

[45:21] BRADY HARAN: Put them

[45:22] JAMES GRIME: He loves them.

[45:23] BRADY HARAN: No, but I think

[45:25] But I know you like

[45:28] And you must know a few.

[45:29] Are there any?

[45:32] JAMES GRIME: Take epsilon

[45:35] There you go, that's one for

[45:37] BRADY HARAN: What did you say?

[45:38] JAMES GRIME: Take epsilon

[45:41] That is killing.

[45:43] In all the maths departments

[45:48] slaying them.

[45:48] BRADY HARAN: Really, really?

[45:50] JAMES GRIME: They

[45:51] That is going down a storm.

[45:52] BRADY HARAN: Let's have

[45:54] James, are you really

[45:56] Is that--

[45:56] JAMES GRIME: Yeah.

[45:58] BRADY HARAN: [INAUDIBLE].

[45:58] JAMES GRIME: Well, yeah.

[45:59] I am the singingbanana

[46:00] I am singingbanana.

[46:01] You see a comment by

[46:05] I'm not a singing

[46:07] I'm just his agent.

[46:08] BRADY HARAN: Why do

[46:11] Halloween and Christmas?

[46:12] Is that a maths joke?

[46:13] JAMES GRIME: Yes, because

[46:19] BRADY HARAN: That's good.

[46:20] That's the kind of

[46:21] JAMES GRIME: That's the level

[46:23] BRADY HARAN: That's actually

[46:25] I also don't mind the, you know,

[46:28] type jokes.

[46:29] I like those corny ones, too.

[46:30] But that I quite liked.

[46:35] Do you watch Dara O'Brien's

[46:40] I've never seen.

[46:41] JAMES GRIME: Yeah, I've seen

[46:42] I've not seen them all.

[46:43] I've seen a couple

[46:44] Dara O Briain is a comedian

[46:46] He's Irish and South.

[46:48] And he actually did a maths

[46:52] mathematical physics.

[46:53] So he's from a mathematical

[46:55] He's got a TV show in the UK

[47:00] It's mixing maths with comedy.

[47:02] It's also with Marcus du Sautoy,

[47:05] He's great as well.

[47:07] I've actually helped them out,

[47:09] They wanted to do something

[47:11] machines and codes.

[47:13] So I went down and

[47:15] I'm not on tele.

[47:16] They didn't want me on tele.

[47:18] They didn't want

[47:21] BRADY HARAN: No.

[47:21] I phoned them up and actually

[47:24] trying to get you on an

[47:26] "Numberphile".

[47:27] JAMES GRIME: I'll shake

[47:30] But I did help them out.

[47:32] The Enigma machine, when that

[47:35] when that's gonna be.

[47:36] The Enigma machine is the one I

[47:40] Simon Singh.

[47:40] And the stuff that Marcus says

[47:44] fed him as well.

[47:46] So hello to Marcus and Dara.

[47:49] BRADY HARAN: I don't think

[47:51] personally.

[47:52] JAMES GRIME: You might

[47:53] BRADY HARAN: Really?

[47:54] I know their producers

[47:56] But I don't think their--

[47:57] JAMES GRIME: You may

[47:58] Yeah, their producers do.

[48:01] Marcus said, get James

[48:04] has an Enigma machine.

[48:05] And the producer contacted me.

[48:07] They said, hello.

[48:09] Marcus told us to say hello.

[48:11] And she knew who I was.

[48:12] I said, I do this thing

[48:14] And she watches.

[48:16] She didn't quite connect my

[48:20] watches too.

[48:20] So hi.

[48:22] BRADY HARAN: A question.

[48:23] Just because this has been

[48:25] probably should ask it.

[48:25] A lot of people wanna know

[48:29] JAMES GRIME: I think

[48:31] So obviously I don't play

[48:35] BRADY HARAN: It's all right.

[48:35] We're all friends here.

[48:37] Someone says-- this is

[48:39] Are you creative?

[48:41] JAMES GRIME: Right, I see.

[48:43] Do you know what?

[48:44] That's kind of leading me down

[48:47] down this road, about maths

[48:50] BRADY HARAN: Go on then.

[48:51] JAMES GRIME: No.

[48:52] Maybe I'll just [INAUDIBLE].

[48:53] Maybe I'll make it simple

[48:55] BRADY HARAN: Yeah, go on.

[48:55] JAMES GRIME: From my point

[48:57] is a creative subject.

[48:58] I mean, creating new

[49:02] that's never been done before,

[49:06] a creative process.

[49:07] You don't do that

[49:09] robot, by being a machine.

[49:11] I truly believe that.

[49:13] And that's something I want

[49:16] BRADY HARAN: Tell

[49:18] mathematician is creative then.

[49:20] JAMES GRIME: Right.

[49:20] So when I discover something,

[49:22] discover something new.

[49:23] So let's say I want to

[49:26] First of all, I have to come

[49:30] And that's a leap

[49:32] BRADY HARAN: Is that

[49:33] JAMES GRIME: Yes, a hypothesis,

[49:34] So that's a leap of intuition.

[49:36] That's somewhere I

[49:38] And that's a creative,

[49:40] But then to prove it, I'm

[49:45] have not yet been able

[49:47] So you're solving problems

[49:49] people could not solve.

[49:51] And that's amazing.

[49:53] That's brilliant.

[49:54] And to solve it, you might take

[49:57] you take an idea from over

[50:00] things together.

[50:01] You put them together in a new

[50:04] been done before.

[50:05] And you create something.

[50:07] You create something new,

[50:10] done before.

[50:12] BRADY HARAN: Cool.

[50:12] JAMES GRIME: Yeah.

[50:13] And then that's true forever.

[50:14] And that's one of the amazing

[50:17] BRADY HARAN: Someone wants to

[50:19] going to be.

[50:20] They could watch it all day.

[50:22] JAMES GRIME: That's

[50:23] BRADY HARAN: Well,

[50:24] You do have a train to catch.

[50:26] JAMES GRIME: I do

[50:26] BRADY HARAN: Unless

[50:27] around for that Chinese.

[50:28] But we won't be able to go

[50:30] JAMES GRIME: No, not too

[50:31] five minutes longer.

[50:32] BRADY HARAN: Yeah.

[50:33] Let's have a look.

[50:36] Do you prefer hot

[50:38] JAMES GRIME: Cold weather.

[50:39] There you go.

[50:40] BRADY HARAN: I prefer

[50:42] JAMES GRIME: There's a

[50:43] answer for that one.

[50:43] Cold weather.

[50:46] BRADY HARAN: Do you

[50:48] JAMES GRIME: I don't think

[50:50] I'm sorry.

[50:51] BRADY HARAN: You've

[50:53] JAMES GRIME: Don't

[50:54] BRADY HARAN: You've never had

[50:55] to the Eiffel Tower.

[50:56] JAMES GRIME: I've never

[50:58] Eiffel Tower either.

[50:59] BRADY HARAN: That's what

[51:00] That would be awesome.

[51:03] Is there going to be

[51:06] JAMES GRIME: Grime conjecture.

[51:07] There's a Grime corollary.

[51:09] BRADY HARAN: Is that another

[51:11] JAMES GRIME: No, that's me.

[51:11] BRADY HARAN: What's

[51:14] what is it?

[51:16] JAMES GRIME: It's only

[51:17] It's only a little thing.

[51:19] But there was a episode of

[51:21] swapping brains.

[51:23] Have you seen it?

[51:24] BRADY HARAN: I haven't, no.

[51:25] JAMES GRIME: All right, so they

[51:26] machine, so they could swap

[51:29] But they couldn't

[51:30] Once they're swapped, couldn't

[51:32] BRADY HARAN: One-time deal.

[51:32] JAMES GRIME: So they were

[51:35] And they were all mixed up.

[51:37] And they go, oh, no, how

[51:39] back to where we were?

[51:41] Because you can't just

[51:43] And so--

[51:44] and this is brilliant.

[51:45] The guy who wrote the

[51:48] graduate himself, Keeler.

[51:50] He was called Keeler.

[51:51] And he actually wrote a theorem

[51:57] this in general.

[51:58] And it's in the episode.

[52:00] Someone shot on a blackboard

[52:05] do it in real life.

[52:07] And I made a little-- and

[52:09] And I made a little conjecture

[52:11] Well, in that example that was

[52:15] actually done it

[52:19] BRADY HARAN: It sounds like

[52:20] JAMES GRIME: It's a

[52:22] BRADY HARAN: That sounds

[52:23] "Numberphile" video.

[52:24] Tell you what, we better

[52:26] JAMES GRIME: All right.

[52:27] BRADY HARAN: But we'll read

[52:31] things that you've

[52:32] And I'll certainly go

[52:35] when I get the chance.

[52:35] It's not always easy to reply to

[52:38] comment sections.

[52:39] But I think we'll find

[52:40] And James may or may

[52:43] His username is singingbanana.

[52:46] And don't forget this, this

[52:51] James' picture and calling

[52:53] writing here.

[52:54] And if you see him, do

[52:58] What do you call it?

[52:59] Flame him, or thumb him down.

[53:00] JAMES GRIME: Thumbs down.

[53:01] BRADY HARAN: Make sure everyone

[53:03] is a bit of an impostor.

[53:05] Yeah, I don't know.

[53:06] JAMES GRIME: Hang on, don't

[53:08] BRADY HARAN: No, no, no.

[53:09] Yeah sorry.

[53:10] Don't be angry.

[53:11] But don't let other people think

[53:14] JAMES GRIME: [INAUDIBLE].

[53:15] BRADY HARAN: Because it's not.

[53:16] James is singingbanana,

[53:18] And don't forget to subscribe

[53:21] Valentine's Day much easier.

[53:25] Thank you.

[53:25] JAMES GRIME: Glad to help.

[53:26] BRADY HARAN: Thank you, James,

[53:30] And as I said, we filmed a bunch

[53:33] earlier as well.

[53:34] So you're gonna be seeing

[53:36] Even though I'm not going to be

[53:38] the next month or two--

[53:39] JAMES GRIME: [INAUDIBLE].

[53:40] BRADY HARAN: --you will

[53:41] "Numberphile".

[53:42] I'm not seeing him

[53:44] really busy with work.

[53:45] But we'll catch him again in

[53:47] But you will keep seeing

[53:50] And it was good fun.

[53:52] I actually really enj--

[53:53] JAMES GRIME: Yeah,

[53:54] You know, I'm my own favorite

[53:58] that till the cows come home.

[54:00] But I think now's a good

[54:02] BRADY HARAN: Cool.

[54:03] And we'll hope to more of these

[54:06] with James and with others,

[54:08] because it's good fun.

[54:10] It's really good fun talking

[54:11] So cheers, everyone.

[54:13] JAMES GRIME: Thanks

[54:13] BRADY HARAN: See you later.