Parallel Universes and Alternate Realities. A
The concept of The Mandela Effect is simple.
Over time, a few minor details surrounding significant events, and therefore our perception of these events, might somehow change and may continue to improve in the years ahead. In other words, the tried and true spacetime continuum that appears to be the backbone of our collective, three-dimensional, physical reality might have a ripple in it.
It also may have produced a sister, parallel universe, which has birthed different scenarios, events, identities, constructs, and relationships. It might also be true that our tiny, insignificant brains are slowly evaporating and can no longer handle every detail that flashes across our eyes.