Exactly. And I'm not going to rag on him about it too much. I had a physics professor in college who talked about species survival (he had trouble staying on topic). He said species, especially a species like humans that communicates, needs individuals that explore over mountains, try the latest gadget, take risks; and a species needs individuals who stay in the cave, keep using what works, and generally are more risk adverse. Variations like that are important even when they result in the individual being less likely to survive.