The sense comes from the fact that the ape part makes decisions on what to do very fast and the computer part is very, very slow. In the wild, hesitation can often mean death. So we're wired to listen to the ape part first as that's the part that has let us survive through the ages. Only in recent times, relatively speaking, has the computer part of us started making a big difference. And still it isn't always best to think every action through before making it. So the animal-brain retains its superior rank in ruling our reactions. And, really, that's not going to ever change.