Human brain and human thought are also mathematical processes. The only things AI cannot entirely simulate is art and emotions, because it doesn't have hormones.
Unfortunately, I am not old enough that 20 years from now is science fiction for me. And while you are correct about the current AI...
But farmers DID get outcompeted by tractors. It is just that industry required manual labor instead.
Again:
- when agriculture got more efficient, workforce shifted to industry
- when industry got more efficient, workforce shifted to intellectual work
- when intelllectual work gets "more...