If you think in terms of average individual benefit, it's better to be in groups with maximized size.

This social interaction between cockroaches is automatic in some sense.

It's better, in terms of group benefits, to have a 50/50 split instead of one important, large group and one that's less robust.

I've always been drawn to all forms of dance. Coming to Princeton was [my] first exposure to actual training.

Well, you know, for me, I think Spanish food is festive.

It's important that if you have a problem, [it] is solved and is over. I don't hold a grudge.