[avar]

    > Assuming 4K@60fps [...] they'd see a collision rate just under 0.6%

This doesn't detract from your point of collisions like that being viable at that scale, but assuming an average of 4K@60fps is assuming a lot. The average video upload there is probably south of 1080p@30fps.

[Xelynega]

You're glossing over the fact that they assumed youtube would want to assign a UUID to each pixel in a 4k@60fps video as the use case that this would fail for...