MWI = many worlds interpretation of quantum mechanics. It posits the existence of alternate, "parallel" universes.
There are some people who believe that everything that can happen does happen. If that is the case, there is a parallel where I am both willing and able to transport a pot of gold to me here and now. But this hasn't happened. Then either it is impossible for me to be willing and able to send myself a pot of gold or it is not the case that everything that can happen does happen.











