The implications of this concept have been discussed in Stephen Baxter's Manifold novels[0], particularly Manifold: Time[1]. Well worth a read if you're interested in things like this principle and the dark sky paradox. I'm also convinced they heavily influenced the writing of the Mass Effect games, though I have no concrete evidence.
[0] Three books set in a multiverse where each represents a different narrative that could have taken place, involving the same characters.
[0] Three books set in a multiverse where each represents a different narrative that could have taken place, involving the same characters.
[1] http://www.amazon.com/Manifold-Time-Stephen-Baxter/dp/034543...