I think it’s an essential question. I wouldn’t even know how to describe what intelligence means exactly. I’ve experienced very “smart” people make horribly stupid decisions and the other way round.

Since I don’t know a way to describe what intelligent actually means I can’t tell if it’s good or not to have more or less of it.

For some this seems to be a very “finished” topic, but we don’t have any widely accepted definitions of intelligence, not even for “less complex” organisms