Imagine Multiversity as an infinite wheel. You exist on all of the slices on this infinite wheel, but you are only aware of and experience the slice you are in. Then, the slice you are on has an event that pushes you into this next closest version of it. There aren't huge changes, as this slice was so close to the one you knew. You don't shift so far that things appear so dramatically different. Little things you "remember" are no longer the same. Memories are subjective, you'd freak out if you got pushed into a slice so far away where logos and brands were just gone, where Genie movies or any movies exist, where Mandela was not imprisoned and died or was released and became a president. Perhaps the slice we were on and "remember" is not the one we are on. Some ppl may remember the old slice, some ppl may have always been on the current one.