answer:Stephen Hawking literally lives my nightmare: His mind is trapped in a body that doesn’t work. The fact that he didn’t commit suicide 30 years ago, I think, makes him the bravest man who has ever lived. If he – a person who by profession studies all the scary things about space – is afraid of intelligent alien bad guys, I say that is OK. I know some very strong people who are similarly afraid of spiders. We all have fears, no matter how irrational.