There are certain basics of physics that anyone can understand, and you don't even have to understand physics to deal with them. Then there is quantum mechanics, which is totally over my head. Your mileage may vary. The first half of this video from Kurzgesagt attempts to bring us up to speed on the world of quantum mechanics and the many worlds interpretation. Then we get to the experiment that could prove it- but it involves one person dying over and over, like in the movie Edge of Tomorrow. That one person is you, and even if the experiment works, you will be the only person it has been proven to. Of course, you could then write a book about it, but no one would buy it. But from the perspective of one person (me), it still doesn't prove anything. If there are five (or more) versions of me, it doesn't matter to me because my awareness is only in this one. Even if this one were the version that survives multiple killings, I still wouldn't be aware of the other versions. So this scenario remains a thought experiment, but as such, it is pretty mind-blowing. -via Geeks Are Sexy