The problem here is the word "realities" because it doesn't in any way mean an alternate reality where you're there doing something else. This is from the math

The problem here is the word "realities" because it doesn't in any way mean an alternate reality where you're there doing something else. This is from the math model where the resulting path of a particle can be figured out by finding all possible paths. Then what follows is the conjecture that because the math works maybe those particles really do travel by every possible path. There's no proof of this, and it's very hard to test because the result has to be the same. So maybe our reality is the sum of particles taking every possible path. Or may be it isn't. Wake me up when the article title is "Our reality IS the sum of all possible realities."