We see devolution all the time with unintelligent causes. Animals gnaw a hole in the bottom of a jug of water and they get some water but the rest is wasted. They destroy the feedhouse door trying to get into the feed because they don’t know how to use the doorhandle. They do get fed but the feed is scattered and much is wasted. *That’s what an unintelligent cause is typically like.* Put another way, the animals won’t learn to use the doorhandle or the jug cap. But just to survive and reproduce, they might not need to.