引力的故障：量子引力之外的激进理论

Bringing gravity into the quantum fold has long proved tricky, but a radical approach could be the answer, discovers Leah Crane THE odds of the bet Jonathan Oppenheim made in 2023 are generous, even at 5000 to 1. But if he wins, it could transform our view of the universe. The physicist is wagering that space-time, and therefore gravity, isn’t governed by quantum theory. That swims firmly against mainstream physics, which says gravity must ultimately be quantum, like the rest of the fundamental forces – even if we can’t currently work out how. The wager is playful, but the question is serious, representing perhaps the most intractable puzzle in modern physics. …