I disagree that it's obvious. Even a mediocre driver can do things like change lanes in heavy traffic. The nut of the problem is a social one. You have to signa

I disagree that it's obvious. Even a mediocre driver can do things like change lanes in heavy traffic. The nut of the problem is a social one. You have to signal your intention and then figure out when someone else is going to let you in. The basic human ability to form a picture that includes the intentions of the other human beings around them is part of the "Strong AI problem" and may never be solved, ever.