A.I learning?!

[re-start]

Hello friends. I've heard that A.I. is expanding every day. Like Tesla cars, Google ads!
I want to learn about it, I already know a little bit of python.

What "free" websites do you know to start with? ^{(Except YouTube/ I already know it)}
Overall, what do you think? Should I spend my time learning it, or something else?

[ParkerCo]

Interesting thread. Following! Any suggestions ppl?