It is. You can hire the people who have solved it to do it for you.
"GPGPU compute is a solved problem if you buy Nvidia hardware" type comment
You're replacing the word hire with buy. That misconstrues the comment. If you need to do GPGPU compute and have never done it, you work with a team that has. (And if you want to build it in house, you scale to it.)
Which is valid? If your problem can be solved by writing a check, then it's the easiest problem to have on the planet.
Netflix didn't have to put out 3 PhD dissertations on how to improve the SOTA of live streaming, they only needed to reliably broadcast a fight for a couple hours.
That is a solved problem.
Amazon and Cloudflare do that for you as a service(!). Twitch and YouTube do it literally every day. Even X started doing it recently so.
No excuses for Netflix, tbh.
Every off the shelf component on the market needs institutional knowledge to implement, operate, and maintain it. Even Apple's "it just works" mantra is pretty laughable in the cold light of day. Very rarely in my experience do you ever get to just benefit from someone else's hard work in production without having an idea how properly implement, operate, and maintain it.
And that's at my little tiny ant scale. To call the problem of streaming "solved" for Netflix... Given the guess of the context from the GP post?
I just don't think this perspective is realistic at all.
Right. They have to hire one of the companies that does this. Each of YouTube, Twitch (Amazon), Facebook and TikTok have, I believe, handled 10+ million streams. The last two don't compete with Netflix.
Offering it for sale != having solved it.