There's nothing about 4K videos that needs an SSD, an OLED display, or any particular video codec, and "large-scale internet infrastructure" is just a different way of saying "lots of high-bandwidth links". Hardware graphics acceleration was also around long before any form of 4K video, and a video decoding accerator is such an obvious solution that dedicated accelerators were used for early full-motion video before CPUs could reasonably decode them.
Your anecdote regarding P2P file sharing is ridiculous, and you've almost certainly misunderstood what the author was saying (or the author themselves was an idiot). That there wasn't sufficient bandwidth or computing power to stream 4K video at consumer price points during the heyday of mp3 file sharing, didn't mean that no one knew how to do it. It would be as ridiculous as me today saying that 16K stereoscopic streaming video can't happen. Just because it's infeasible today, doesn't mean that it's impossible.
Regarding ChatGPT, setting aside the fact that the transformer model that ChatGPT is built on was under active research 10 years ago, sure, breakthroughs happen. That doesn't mean that you can linearly extrapolate future breakthroughs. That would be like claiming that if we developer faster and more powerful rockets, then we will eventually be able to travel faster than light.
Your anecdote regarding P2P file sharing is ridiculous, and you've almost certainly misunderstood what the author was saying (or the author themselves was an idiot). That there wasn't sufficient bandwidth or computing power to stream 4K video at consumer price points during the heyday of mp3 file sharing, didn't mean that no one knew how to do it. It would be as ridiculous as me today saying that 16K stereoscopic streaming video can't happen. Just because it's infeasible today, doesn't mean that it's impossible.
Regarding ChatGPT, setting aside the fact that the transformer model that ChatGPT is built on was under active research 10 years ago, sure, breakthroughs happen. That doesn't mean that you can linearly extrapolate future breakthroughs. That would be like claiming that if we developer faster and more powerful rockets, then we will eventually be able to travel faster than light.