While only hypothetical, there is a possibility that there are an infinite number of universes out there. I know, I know... universe technically means "everything". But there is at least one prevailing theory with some compelling evidence... We exist. There are an infinite number of possibilities for physical laws. read more
If you take the left, there is a universe where you go right, you are constantly diverging into alternate realities based on every decision you make and indeed everything going on around you down to the quantum level. read more
The idea of parallel universes in quantum mechanics has been around since 1957,' said Howard Wiseman, a professor in Physics at Griffith University. 'In the well-known 'Many-Worlds Interpretation'', each universe branches into a bunch of new universes every time a quantum measurement is made. read more