The problem is if I kill Adolf then the motive to kill him also gets destroyed. If Adolf is dead then he doesn't create the so called final solution and I don't need to make a time machine stop him and then he is free to live and destroy. Then I do go back and then I don't the event becomes like a flickering light that goes on and off continuously for eternity.
It is very good that I'm not telepathic because people would just walk up to me and tell me to stop thinking, they would say think-up instead of shut up and give me a bottle of vodka to switch off my restless mind.