How YouTube Video IDs Work—and Whether They Can Run Out
Tom Scott · Explainer · YouTube title: Will YouTube Ever Run Out Of Video IDs?
Why it's here
HN links it whenever IDs, base64 or random identifier space come up, as a short and pleasant explainer.
What it covers
Tom Scott explains YouTube's 11-character video IDs, which are base-64 encoded 64-bit numbers, and whether YouTube could ever run out of them. It covers counting systems and base 64 briefly.