This whole "universe splitting" theory seems like a load of utter hogwash trying to explain the simple fact that humans tend to have really bad memories.
Somebody didn't get to point 9: "I don't really believe we switched universes. Obviously, with my rational mind, I understand that the most reasonable explanation is that I misremembered. Occam's Razor and all that."
You may wish to read section 9 of the post, which explains that the multiple-universes idea was a bit of a joke. But nonetheless there is something very interesting going on here.
