The fact that we are losing this predisposition to fear is not under dispute, in fact, that was my original point. Anyway, I'm going to bed

I might continue this tomorrow with my theory that the unused space in our brains is for genetic learning. we only have 70 years to accomplish something, then someone has to pick up our work where we left off. That won't be long enough to say...develop faster than light travel (just an example, I'm fully aware relativity prevents it), imagine what we could accomplish if we were one day born (or at least naturally developed in our very early years) higher understandings of mathematics and physics? I'd lie to think that's where evolution will take us.