No, I take it back, it just started advertising somebody's webcam. Never mind.
That's kind of a shame. I much prefer surrealist spam to the regular kind.
A friend of mine,
I don't recall the exact winning criteria, but the helpful critters died out if you had only helpful and hurtful critters. Hurting was simply a better strategy. But if you had the reciprocating ones in the mix as well, the hurtful critters would lose and the helpful ones would win. There was much more of an incentive to be helpful.
The study referred to the helpful critters as "good people", the hurtful critters as "bad people", and the reciprocating critters as "policemen".