I know little about AI but even if we created AI that's only on par with humans on an intelligence level, I'm sure it'd blow us out of the water.

It wouldn't need 30+ years of development and education to be useful, just weeks or months before it's fully up to speed. Then, once it is up to speed, it can work 24/7, unlike humans, and can incorporate new information much faster than any human ever could and process things much faster.

Add in the things that computers are already far superior at, like data analysis, and I'm sure a human intelligence level ai could outperform a whole team of scientists.

I find it kind of terrifying, not because of the whole sentient ai kill all humans thing that usually comes up in science fiction but because I think it will be used for ill by some for sure, plus we might well be the equivalent of horses in the 20th century.