I think it is really interesting that when a baby is born, it has an unlimited number of different paths it can take. Right now, while you are reading this blog, there is a set of actions and words that could make you a billionaire, janitor, pope, or even Elvis impersonator. That is pretty cool! Think about what would have happened if the Dali Lama had decided, at the age of 5, that he didn't like Tibet and he wanted to move to LA. He could have come to LA and become one of the biggest porn stars on earth.
On that same thread, there are probably a dozen Einsteins mopping floors or chasing zebras but because of the circumstances they find themselves in, they can't harvest this ability and share it with the world. If Bill Gates hadn't made Microsoft what it is today, maybe Kenny Melvison from Oklahoma would have made the equivalent.
If JFK wasn't assassinated, maybe your parents wouldn't have spent that extra 5 minutes reading the paper and their paths would have never crossed. Or maybe they would have met but conceived their child a month earlier or later. His death meant that the particular egg and sperm that you came from could one day collide.
Think about that the next time you decide to cancel a trip, or hit the snooze bar, or get drunk in Mexico and let a guy named Jose tattoo his name on your butt.