And please give some evidence that is at least in principal testable. - Pied Piper, 10 Aug 04

The problem was summed up in the opening post of this thread. That is an impossible ask, as we see.

It all depends on personal experiences, which may or may not be purely the result of provoked or random chemical reactions in the brain. Which way you lean will depend on how the composition of chemicals in your head is balanced.

It's all in your glands