I've never tried to find my real parents. I'm very grateful to my mum and dad for adopting me - they're completely incredible people. It was my dad who encouraged me to question everything to forge my own path to think to read. I always felt it was my right to question everything.
Human knowledge has been changing from the word go and people in certain respects behave more rationally than they did when they didn't have it. They spend less time doing rain dances and more time seeding clouds.