Why System Design Interviews Ask You to Count Billions of Users Without a HashSet
Published 16 Jun 2026 · 32 daily observations recorded · last updated 2026-09-29
Recent growth
Performance history
Every observation TubeSum recorded, plotted as measured.
Based on 32 observations · last observed Sep 29, 2026 · straight lines connect consecutive observations — TubeSum does not measure the days between them.
All observations
The same points the chart plots, as exact numbers. Gaps mean no observation was taken that day.
| Date | Views | Avg views / hour | Channel median |
|---|---|---|---|
| 2026-09-29 | 112,523 | 44.8 | — |
| 2026-09-28 | 112,042 | 45.1 | — |
| 2026-09-27 | 111,484 | 45.3 | — |
| 2026-09-26 | 111,077 | 45.6 | — |
| 2026-09-25 | 110,690 | 45.8 | — |
| 2026-09-24 | 110,270 | 46.1 | — |
| 2026-09-23 | 109,661 | 46.3 | — |
| 2026-09-22 | 109,236 | 46.6 | — |
| 2026-09-21 | 108,843 | 46.9 | — |
| 2026-09-20 | 108,524 | 47.3 | — |
| 2026-09-19 | 108,171 | 47.7 | — |
| 2026-09-18 | 107,832 | 48.0 | — |
| 2026-09-17 | 107,365 | 48.3 | — |
| 2026-09-16 | 106,961 | 48.7 | — |
| 2026-09-15 | 106,603 | 49.0 | — |
| 2026-09-14 | 106,176 | 49.4 | — |
| 2026-09-13 | 105,730 | 49.7 | — |
| 2026-09-12 | 105,357 | 50.1 | — |
| 2026-09-11 | 104,893 | 50.4 | — |
| 2026-09-09 | 103,543 | 51.0 | — |
| 2026-09-07 | 102,332 | 51.6 | — |
| 2026-09-06 | 101,836 | 52.0 | — |
| 2026-09-04 | 100,896 | 52.7 | — |
| 2026-09-01 | 99,038 | 53.7 | — |
| 2026-08-31 | 98,234 | 54.2 | — |
| 2026-08-27 | 95,611 | 55.6 | — |
| 2026-08-18 | 91,234 | 60.3 | — |
| 2026-08-17 | 90,589 | 61.3 | — |
| 2026-08-10 | 87,325 | 66.7 | — |
| 2026-08-07 | 86,421 | 69.5 | — |
| 2026-08-05 | 85,669 | 71.9 | — |
| 2026-08-04 | 85,410 | 72.7 | — |
Content analysis
Transcript, chapters and structure for this video live on its analysis page — performance and content are separate documents on TubeSum.
Read transcript & analysis →