Uncompressed 1080 is already approaching the eyes resolution limit, when viewing it in a living room environment. 4K is close to the monitor usage limit.
The reason that 4K seems better is often down to bandwidth and colour depth.
There’s zero benefit to an 8K TV. An 8K monitor might be useful, but is still well into the diminishing returns curve.
There’s still some ground to be made up with colours and frame rates, but resolution is effectively maxed out already.
It was first found in monkeys, but actually originated in rodents. It should technically be rodentpox.
Also, racists and homophobes used it to create stigma against gay men. In was/is particularly prevalent in that group. There were rumours that you caught it from sex with monkeys.
Basically it was renamed to pull the teeth of a nasty and insulting use, and to break a misunderstanding on its source.