Have you ever had a feeling of deja vu, where you sense that you've experienced something before, even though you know you haven't? Or perhaps you've had a dream that feels like a memory from another life, or you have a strange sense of familiarity with a place you've never been to before, what about The Mandela Effect?

These experiences could be evidence of the existence of parallel worlds, alternate versions of reality that exist alongside our own. Some scientists and philosophers believe that these parallel worlds may be there but inaccessible to 3 dimensional humans such as ourselves.