: :I call this new theory the Co-Portal Theory and it :sort of verses the Book Theory, it is named :because one portal leads to another portal. It :involves Black Holes and White Holes(White :Holes can't disappear because they constantly :get fed energy by their Black Holes) and :materials approach the Black Hole and soon :approach the speed of light and go through the :Black Hole like a rocket and get transported to :the White Hole and begin to slow down and :they are now on the other side. I couldn't find a :possible explanation for Black Holes and White :Holes to be portals to a whole other universe.