I recently was talking to someone and I was introduced to the Mandala Effect. If you don't know what that is, read https://www.yahoo.com/entertainment/40-mandela-effect-examples-blow-050000726.html.Â
The examples are mind-boggling, but here is how universes colliding because of a multiverse could play a role. The universes colliding, for one, result in the make up for the extra dark energy we cannot explain, a current struggle in physics. Between that and the Many Worlds Interpretation, which there is growing support for, there may be some exchange/bonding between the universes, causing the Mandala effect. Maybe some of this is because of the entangled particles from the Heisenberg energy-time uncertainty principle at the beginning of our present universe, and those particles are still connected in separate universes. Or maybe dark energy is interacting with dark energy from other universes causing more acceleration, but this interconnection is messing up timelines, resulting in the Mandela effect. I admit that these are all very speculative and debatably unscientific, but I think it is fair to say that something about our universe is causing this weird effect, unless neurologists have another explanation to why many, many people encounter the Mandela effect. Sometimes the craziest thoughts wind up leading to something. Thanks for reading!