Quantum physics says that there is an infinite number of possibilities and parallels to the one that we know, and every event is also played out in a parallel world. It's kind of a crazy idea, but someone called Saibal Mitra at the University of Amsterdam says that if you could back up your memory in case of a catastrophic event, you could actually revert to that back-up and find an alternative world in which the Earth didn't explode or collide with Mars.
If but one message, I may leave behind, One single word of courage for my kind, It would be this Oh, brother, sister, friend, Whatever life may bring what God may send, No matter whether clouds life soon or late-- Take heart and wait!