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Originally Posted by force5 Third, I would postulate that some forms of energy are stable. An example might be Dark matter or the proton. I realize that it has been speculated that the proton has a half life of 10^38 years. Test are still underway to prove or disprove this. |
the stability of the proton is due to the fact that the 2 up-quarks and 1 down-quark composing the proton do not change flavor or color charge and also due to the non-interaction of leptons (leptons do not feel the strong force or color force) and quarks (quarks can feel all the forces of nature) at low energy or temperature. The universe is actually getting bigger and bigger, therefore it is getting colder and colder and reaching maximum entropy called the heat death of the universe. For the proton to decay, it must be placed in the hottest oven possible like the big bang singularity. In other words, to break the proton into its constituent quarks, it must be cooked at very, very high temperature.