[righttoolforjob]

Who said it followed? That's a strawman. To dumb it down even further for you, I guess...

There are brains, therefore there can be created an artificial super-brain. Artificial super-brain might have goals which don't align with human brain and we will have no way to understand or control the situation.

Two unrelated facts, which together mean that we should be careful with experimenting with the science working towards super-brains. Just a single super-brain could end us.