The Halo Effect: How Humans Can End Up Being Overconfident

System one allocates attention to the effortful mental activities that demand it. System two in that sense is lazy, like it you'd rather not use system two because it takes so much effort. So we use system one as much as we can until we come across some kind of tricky question which forces us to stop and think. And that's when system two is triggered when it absolutely has to be. The halo effect - taking a small piece of information about somebody and extrapolating that to make a whole bunch of assumptions. Sounds a bit like me, don't they? That's what I was using to explain it.