It has always been my belief that there are no alternate universes and that in reality we all live in the same universe. There is no end of space or end of time, and there is no beginning of space or beginning of time. Both time and space are infinite and if time and space are infinite then the probability that some thing will happen is infinite. Those alternate universes do exist, they just exist in the same universe. In other words some where in space every possible outcome is happening right now and some where in time every possible outcome is happening right here. Yes, that dose mean there is intelligent life out there, and it also means we are not the first intelligent lifeforms in the universe. Also, this means there is no first or last because everything has always existed and will always exist. One day I hope we are lucky enough to travel or to observe some part of space or time where we can see how different our world could have been and how much of a deference each of us can make. Unfortunately I have to go back to work now and will have to continue some time later. Till next time(or space).