You cannot prove the future, you can only guess it.

But memory will not become faster and therefore CPUs cannot become faster, no matter how many cores they have.

Now there are only bad compromises left in optimizing CPUs that lead to other weaknesses like meltdown.

That combined with peak lithography is when you know the tech has peaked. Game Over!

If time is infinite, it means that everything *must* already have happened *or* can be assumed to have happened, including game over and game restart.

The heat death of an expanding universe might disagre

That's:

a) A theory b) That in no way contradicts the possibility of a continuum where universes may rise, expand, contract and die, only to rinse and repeat c) If nothing can be created out of nothing, and if in the universe energy cannot be created or destroyed that doesn't seem to be correct unless the universe is an artificial system d) The only way for C) to be true is if everything is always the same thing in different forms, at which point we might as well say time is infinite

(caveat: artificial systems of course - but those still need to be initiated from somewhere else at some point down or up the chain of creation - so it should follow that something infinite must be at play)