 So I started seeing this and then went to a couple of my colleagues and students and said, why don't we do a literature review? Let's look for this and let's particularly look for exceptions because it will make a more interesting theory. If we can say, well, bad things are stronger than good things in A, B, C, and D, but the exceptions are E, F, and G, the problem is we couldn't find exceptions. All different methods and all different sorts of phenomena keep pointing to the same conclusion. The mind just overreacts to bad relative to good.