Every time someone says we've reached the end of evolution, be it organic or digital, I fall off my chair laughing. You have absolutely NO IDEA what's going to happen, nor do I, nor does anyone else. So unless you're 90 or older, stay tuned, it won't be long. We are not the crown of creation, and Gordon Moore was just pulling numbers out his keister when he posited it, IN 1965!There won't be.
We've already hit the end of Moore's Law. Even Nvidia knows it.
Computing power increases from here on out will be incremental, not exponential - at least until or if quantum computing becomes a feasible technology. There are physical limits to how small traces on wafers can get, and we're getting close.