A physics professor was talking about an app which splits the universe so you can make one decision in one universe and another decision in the other universe.

https://www.reddit.com/r/UniverseSplitter/comments/i969mq/have_you_guys_been_experiencing_mandela/

Some people who have used the app claim to have had more Mandela effects or deja vu. Is this likely to be the case and can universes interact with one another?

https://m.youtube.com/watch?v=1_ZsDBMPQMI