It is probably possible to horde more Youtube videos than you could ever watch, probably including most of the ones that you might ever be interested in. And it is almost certainly impossible for any individual to capture every video which goes through Youtube.
Neither of these seem to address the issue of whether there exist videos which will retrospectively have archival value which are not captured.
That’s a really interesting question: how to determine videos that I might ever be interested in.
> whether there exist videos which will retrospectively have archival value which are not captured.
And that’s not really a question: there definitely exist videos that have a certain historical value which were deleted from YouTube, and most of them before I archived them cause I am lazy.
I would gladly pay for a personal archive.org - a solution that automatically archives each page I visited and video I watched. I guess the required storage amount will be pretty affordable.
> And that’s not really a question: there definitely exist videos that have a certain historical value which were deleted from YouTube, and most of them before I archived them cause I am lazy.
Sure, but you aren't the only one backing up YouTube videos. It seems at least plausible that the aggregate storage capacity of the entire data horder community and their propensity for backing up whatever they come across could result in a situation where if something is interesting, somebody ends up capturing it, right?
Unless the entirety of youtube can be archived it's safe to assume that there will be something of value which isn't being preserved. It's an unsolved problem and not one Google wants to see solved.