So I finally got my BSFL bin up and running:
You can't really see the larvae, but they're everywhere just under the surface.
But now I'm wondering: how do the larvae find the ramps when they're ready to leave? They'd have to be right in the corners or along the sides where the ramps are, and since they're blind and tiny-brained, how would they do this? It seems like it would be extremely unlikely for one to happen to find itself in a spot where it could hit the ramp just by chance. How does this work?