I think the important thing in that case is that I can trust it to get me there better than I could get me there. I mean, yea, I do expect it to do some optimi

I think the important thing in that case is that I can trust it to get me there better than I could get me there. I mean, yea, I do expect it to do some optimization, in that I expect it to use some path finding algorithm with some collection of weights on the different paths, or something like that, and for the instance of the path finding problem that it produces I expect the route to be optimal, but that the problem it produces may differ in some ways from the true most correct problem to solve, but, in the end, the solution it gives me is better than the one I would produce, so, why do I care if it isn't quite optimal under the literally perfect criteria? (I mean, if another alternative gave better results that would be better, of course. I just mean that what it is isn't bad.) I don't think navigation is the best example for this topic though. Navigation seems like a fairly solid/well-defined problem, not like more of the more fuzzy questions, like "does this picture include a face?" .