So let's get this straight. Are parallel universe/ multiverse/ alternate realities/ string theory or whatever you call it really real? By real I mean scientifically proven and is real in the sense that it actually exists. I want to know if there could really be an infinite number of realities in an infinite number of universes where every possible scenario to every possible situation is happening all at once and everything that ever was is or could be or will be every possible solution or outcome or path of way of movement is possible and exists in a universe that is running exactly parallel to the one we are in right now. Please /sci/entists explain this to someone who has a very basic and little understanding of physics and other high sciences. Are there really alternate realities out there? an infinite amount that are all real and exist regardless of whether we can access them or not.