That said, I've got no idea what that parenthetic value really does mean. But it regularly shows an absurdly high value -- far higher than any of my cars have ever reached. And in the succeeding generation, it is *not* the case that my cars that all scored lower than this are discarded. They continue to evolve (generally) forward, using the rules I listed.
-CWuestefeld
I think you're right about everything, except that I think my "goal" score idea
is correct. I just might not be very clear in my description of what a "goal" score is. Let me try to clarify:
Basically, if a motorcycle reaches the "goal" score, it doesn't bother simulating it any further and just moves on to the next mutation. Thus, it has reached its "goal" and is considered the cream of the crop for its particular generation.
Ideally the algorithm should favor those motorcycles which scored the highest, but there's really no way of knowing how exactly a vehicle that reaches the goal affects the next generation compared to the others that don't.
What I do know is that when none of the vehicles get close to the "goal" score, then the number goes down. But if just one makes it or gets about half way, it goes up (doubles?).