All possible universes exist, that doesn't make them parallel dimensions, that just makes them possible universes. What happens in the actual universe is a matter of complexity. Chaos is the reality filling the mold of possibility left by de facto existence.

I read a new theory on time travel related to the idea. Basically, the universe would not let you fuck your own mother. So I heard.

Blueline: In answer to your question, the proverbial leap of consciousness one attains when they separate themselves from the outside and become "I am" does not actually make them any smarter in the evolutionary sense. A lizard is no dumber than the man; its perfectly apt for its niche. People suffer through their niche, and they call it intelligence. I'm not saying intelligence does not exist, simply that the way you frame it in your arguments is an illusion.