The user can rely on the quantum mechanics principal of something being capable of being in two or more states simultaneously until observed (simplified to the "Schrödinger's cat" thought experiment by Erwin Schrodinger) to effectively exist in all unobserved points at once, only existing in a specific point when observed. In practice, it would seem to be the power to teleport between any unobserved points, and simply disapear when not observed.