“Supposing a new era begins after the big crunch, will the number of protons (or baryons) be the same in the next cycle? Will the protons retain a memory of their previous life in the earlier epoch of the universe when deciding to decay or not to decay? Will there be subsequent cycles of big bangs and big crunches? If so, will proton decay affect the cycles of the far future? There exist no answers to such questions at present.” UniversePhysicsParticlesBig CrunchProtons Book:The Ultimate Fate of the Universe Source: The Ultimate Fate of the Universe
“One of the most intriguing problems is to understand the precise nature of time, especially with regard to the big bang, the big crunch and the long-term future of an open universe.” ScienceTimeUniverseFuturePhysicsBig BangBig CrunchNature Of Time Book:The Ultimate Fate of the Universe Source: The Ultimate Fate of the Universe