The Fall of a Butterfly

Have you ever wondered if there is a true copy of you somewhere? A person who is not you but lives on a planet most likely called Earth? This person's life may be identical to yours or again completely different. Maybe in this other world this person acts like you would never do, as in infinite space and time even the most improbable events can happen ... These are all theories of people with minds full of hopes and dreams. But what happens when all this becomes your truth?