Brown hole theory because some physicists are talking out their arse.
Seriously I dont think it has an official title its just referred to as 4 Dimensional Hyper Black Hole Theory. Its a star in a 4 dimensional universe falling into a four dimensional black hole which is actually 3 dimensional because a black hole in 3 dimensional space is actually 2 dimensional.
I know its improbable buuutttt I found it interesting, doesn't nean I 'believe' it. I think when a mummy universe and when a daddy universe love eachother very much they have a Big Bang...