Computers will never rule the world. They have no thumbs.

Seriously, this is the same scare story people were spouting when i was a kid in the 70s, that by 2000 computers would be so smart they'd take over the world. But i just can't see it. I don't deny that AI can be made way more intelligent than us and in some ways it already has been for a long time e.g., a calculator is faster and more accurate at math than we are.

But the whole argument falls apart because first, it assumes an AI machine would want to rule the world. But unless we somehow also give them a human-like lust for power to go along with their superintelligence, they won't give a shit who's in charge. They'll be happy just sitting there calculating pi to a zillion digits. And second, giving a machine the power and will to rule the world is something no human would ever aspire to do because the human would want to rule the world themselves. They'd just build an AI that could help them pull it off.

As far as genetically manipulating the human race into some kind of mutant super-race goes, that's a bit more interesting, but still strikes me as a bit far-fetched, especially in a time-span as short as two centuries.