Are parallel universes philosophy or science?

QI creator John Lloyd and solar scientist Dr Lucie Green discuss the mystery of parallel universes with The Infinite Monkey Cage’s Robin Ince and Brian Cox. In John’s alternative world he imagines a knighthood; in Lucie’s she fantasises about bigger telescopes. #BrianCox #ParallelUniverse #philosophy #physics #RobinInce #science #TheInfiniteMonkeyCage