there are no robots roaming around anywhere, not even at ces, the las vegas ciaccio, and it is also not this. so hollywood colors a lot of what we think about ai, and it colors our defaults about ai, but what is ai really? ai is a branch of computer science. now, inside artificial intelligence, the branch of computer science, there are lots of different subfields. the way that inside the field of mathematics, there are lots of subfields like algebra. so ai is a subfield of computer science. inside ai with other fields like machine learning or expert systems or natural language generation or natural language processing come subfields, probably keyword you have heard recently, and those are legitimate kinds of ai. however, we have got some linguistic confusion happening here because when you think artificial intelligence and you think machine learning, it sounds like there's a little break inside the computer, right? one time i was demonstrating a program i wrote at the kind of science fair for grown-ups and his undergraduate came over and said you built and ai. i said yes. they said is i