[00:03] the ground, you'll need a pair of wings with a wingspan of about 7 m. But to stronger pectoral [music] muscles and a keel bone to anchor them, or they'd rip off instantly. Still, the rest of your bones are too bulky. Bird bones are
[00:17] hollow with air sacs [music] connected directly to their lungs, so each downstroke pushes a fresh wave of oxygen directly through the system. We'll make yours the same, so the faster you flap, the more efficiently you breathe. Your
[00:29] next problem is Ephrin-B3, a small molecule in your spinal cord that makes alternating limb movement, aka walking, natural for you by separating the limb nerve circuits. Birds lost this molecule and are now used to flapping both wings
[00:43] at the same time. After getting rid of it, you just need fuel. Flying takes more than twice the energy of running, so you'll need around four cheeseburgers flying. So, other activities like [music] doom scrolling will have to be
[00:57] >> [music] >> You're closer to an Argentavis, one of the largest birds to ever fly, with plane-sized wings. If evolution got this beast [music] airborne, maybe someday it could get us airborne, too.