The JC’s guide to theoretical physics in the markets.™
Parallel universe /ˈparəlɛl ˈjuːnɪvəːs/ (n.)
What might have been — and might yet be — but wasn’t, and won’t be. The sort of beard you grow when Occam’s razor is blunt. Your last, desperate hope — when even your dearest philosophy has failed you — of spiritual or intellectual redemption.
If you resort to hypothesising a parallel universe — be it one where unobserved but necessary space-time dimensions manifest themselves, one whence your mortal soul will go when from its earthly coil it shuffles, or one where leaving the most successful free-trade organisation in the history of the world will improve your prospects of overseas trade — whatever argument you are having at the time, you have surely lost.