So yeah, the idea of "deception" is a human construct, as is the idea of "evil." And one could argue (as a previous poster did) that successive generations developing behaviors which are in their own self interest (so they get more food) but may (as a byproduct) be deleterious to others (since they get less food) is not a surprise. But extrapolate this to humans, and you get the kinds of behaviors that we call "deceptive" and, since we have ideas about the virtue of altruism, we call such behaviors "evil." This is experiment is definitely interesting in terms of group dynamics and behavior, and also because the novelty of the robots' solution to their problem is interesting-- two very different lines of thought. This kind of "deception" is one obvious and common solution to the problem of limited supply and competitive demand.

Deception is most interesting, I think, when you pair it with understanding of the "other" --that one is not merely making a strategy to get more food, but that in the process one is taking that food from others. So when humans and our closest relatives practice deceptive behaviors (which are surely-- and here demonstrably-- evolutionarily beneficial) it's complicated by our... moral sense? Altruistic tendencies? That's fascinating! When robots start to develop guilt complexes for their deceptive behaviors and guiltily hand over their food to others when caught in the act, I'll be impressed.

We are not using the term "deception" here in it's standard (moral) sense, which would indicate knowledge that another individual is being "fooled."