The penny has dropped (Image: Nick Veasey/Getty Images)
WHY is there a 1 in 2 chance of getting a tail when you flip a coin? It may seem like a simple question, but the humble coin toss is now at the heart of a lively row about the multiverse. At stake is the ability to calculate which, of an infinite number of parallel universes, is the one that we inhabit.
The debate comes in the wake of a paper posted online a couple of weeks ago by cosmologists and Daniel Phillips, both at the University of California,…
