The most serious uncertainty affecting the ultimate fate of the universe is the question whether the proton is absolutely stable against decay into lighter particles. If the proton is unstable, all matter is transitory and must dissolve into radiation.


Time Without End: Physics and Biology in an Open Universe, Reviews of Modern Physics, Volume 51, Number 3, July 1979


The most serious uncertainty affecting the ultimate fate of the universe is the question whether the proton is absolutely stable against decay into...

The most serious uncertainty affecting the ultimate fate of the universe is the question whether the proton is absolutely stable against decay into...

The most serious uncertainty affecting the ultimate fate of the universe is the question whether the proton is absolutely stable against decay into...

The most serious uncertainty affecting the ultimate fate of the universe is the question whether the proton is absolutely stable against decay into...