Is Another Universe Sitting Too Close To Us On The Multiverse Bus?

"The voids we have detected cannot explain the Cold Spot under standard cosmology. There is the possibility that some non-standard model could be proposed to link the two in the future but our data place powerful constraints on any attempt to do that."

"Perhaps the most exciting of these is that the Cold Spot was caused by a collision between our universe and another bubble Universe. If further, more detailed, analysis of CMB data proves this to be the case then the Cold Spot might be taken as the first evidence for the multiverse – and billions of other Universes may exist like our own."