Our mind is more powerful than we think. I don't know peeping into future is possible or not. But few people can actually see the big picture or deduce the whole from only small portion of it. Yes, like jigsaw puzzle you can know how it will end by looking at few pieces but you never know until it happens, it might differ a little.

Life is like Schrodinger's cat. Things happen or things don't happen when you open the box. But what if the box is never opened, cat will die eventually. There is no escape.