Note: I'm not a native English speaker so my grammar isn't perfect.
It has been speculated that some black holes could work as wormholes. So wormholes are basically reverse black holes? It's a black hole on the other end and a wormhole (a reverse black hole) on the other. Black hole sucks matter in and wormhole pushes matter out. [Michio Kaku Explains String Theory:
] 1:08 so when 2 universes become in contact with each other.. happens a big bang.. when a wormhole is created between universes.. the universes become in contact with each other too. Perhaps the big bang was caused by the birth of a wormhole. Our universe is expanding because of the big bang and because this wormhole (a reverse black hole) is pushing more matter from another universe into our universe.
After all matter has been sucked out of the other universe into our universe the other universe would no longer exist and the wormhole could collapse and become a super massive black hole (in steroids) and create a new wormhole in another universe. Then the same would happen again but in the opposite direction. Matter would be sucked OUT of OUR universe. So our universe would end in a "big crunch". If a black hole massive enough was created in our universe before this big crunch we could have 2 (or even more) super massive black holes (wormholes on the other end) sucking matter out of our universe.
After all matter has been sucked out of the other universe.. the wormhole could also simply disappear. After this the expanding of our universe would slow down. Eventually black holes would eat the entire universe.. combine creating a super massive black hole (again.. in "steroids") and create a new wormhole into another universe. And the same would happen over and over again.
So.. in short: black holes entirely eat universe A and create a SUPER super massive black hole which creates a wormhole to the universe B.. the wormhole creates a big bang in the universe B (or CREATES the universe B).. the wormhole pushes matter from universe A to universe B.. universe B expands unitl the wormhole has pushed all matter from universe A to B. After that universe B stops expanding and eventually collapses creating a new SUPER super massive black hole.. and so on.
Perhaps thousands or millions of super massive black holes need to be combined before it would become a wormhole. In one video Michio Kaku said.. (I don't remember which one.. I've watched dozens and dozens of Michio Kaku videos) that gravity in universe A could affect universe B. He didn't use these exact words but that was the point. So.. maybe a black hole massive enough could pull 2 universes to each other.. they would become in contact and create a big bang and a wormhole.
What is the space between universes is filled with anti matter? Could black holes generate these "bubbles" Michio Kaku talked about? Maybe these "bubbles" are magnetic fields generated by black holes that would keep the anti matter separated from the "normal" matter? So when 2 universes collide.. the magnetic fields are disrupted and the "normal" matter becomes in contact with the anti matter and this causes a big bang. As Michio Kaku (once again) said in of his videos.. when anti matter becomes in contact with "normal" matter 100% of the mass is converted into energy so the energy released would be enormous.
