There are two different ways of approaching QM: the physicist's way and the computer scienctist's way. You were probably taught it the physicist's way, which i

There are two different ways of approaching QM: the physicist's way and the computer scienctist's way. You were probably taught it the physicist's way, which is not wrong, but obscures the parts you need to know to understand the MWI. That part really is pretty simple. You should try again.