Why men can't compare two girls seen at different times
Assume that a man sees girl 1 on day 1. Let it generate 100 pleasure molecules in amygdala(emotional part of the brain). We do not have exact measuring instruments in brain to register the number 100. An approximate image and descriptions of the girl will be stored in, say, Neuron Group 1(NG1). On day 2, he sees girl 2. Let it generate 90 pleasure molecules in amygdala. Now the man tries to compare girl 2 with girl 1. We have NG1 which projects the approximate image of girl 1. Amygdala may generate 80 molecules for the approximate images of girl 1. And we have Neuron Group 2(NG2) which compares the approximate image of girl 1 and the now present image of girl 2. ( Actually NG2 compares the signals generated by Amygdala for approximate images of girl 1 and the now present images of girl 2) Though, in reality, girl 1 looks more prettier than girl2 for the man, the fact that he could only use the approximate images of girl1 screws up the results of the comp