引力是否创造了现实？

A novel approach to a theory of everything puts gravity in the driving seat, discovers Zack Savitsky S OMETIMES, you work tirelessly on a problem, only to realise you have been going about it all backwards. Imagine trying to fit a massive antique piano through a tiny doorway. You have tried everything – rotating it, removing the legs, forceful shoving – but you just can’t get it to fit. Eventually, you realise it is easier to construct a room to house the piano where it already sits. A long-standing assumption has been that, deep down, everything is quantum. But a century after the inception of quantum mechanics, physicists are still struggling to make a cohesive story out of it. …