>> an estimated half-life of 10^34 years, these protons As far as I know the proton decay is just a hypothesis - they may be able to exist forever. Usually par

>> an estimated half-life of 10^34 years, these protons As far as I know the proton decay is just a hypothesis - they may be able to exist forever. Usually particles decay into lighter particles, but there is no lighter particle that a proton can turn into while keeping it's electric charge.