I read about the idea in the 24 March issue of Science News (page 8). In its lowest energy state a particle might be ‘frozen’ into changelessness indefinitely.
That concept reminds me a little of a Bose-Einstein condensate made of neutrons at absolute zero. In their lowest energy state (that’s basically what absolute zero for mass is; the absence of energy).
One can understand logically how a neutron might be suspended in the real world at near absolute zero and become one with its cohort of Bose-Einstein condensate neutrons without changing. An electron though has a charge and can always potentially dis-charge. Its lowest energy state while existing in a field may be a comparative term.
One might wonder if any quantum unit might not over-time emit some of its energy and disappear from existence disintegrating like steady-state objects. Dr. Wilczek has done the math that may make that not so.
If all mass has a net positive charge in comparison to anti-matter, and if a meta-universe allowed this universe to be separated and exist as a positive charge, then any individual particle of mass, and perhaps even neutrons in the Universe-field might have a comparative charge and have potential energy in regard to the charge characteristics of the meta-verse toward which possible it is being drawn under the guise of lamda (dark energy making the universe ‘expand’).
Would a hypothetical lowest energy state of any unit of matter or anti-matter comprise a time unit too? Time may be a quantitative change of energy status of a quantum, so if an electron is unchanging (it may need to be motionless too) does that make it a unit of time in-itself? Would units of time need to be standard an separable from mass that might be added to with extra energy or matter or even be annihilated?
If electrons are made of quarks and strings or membranes separated from an initial unified membrane-field then because they exist in space-time they are subject to the macro-quantum time of the life of the Universe for-itself, as well as of gravity. While it may be possible to ‘freeze’ some elements of energy into a lowest state for-themselves, for-others the units of mass have may have energy value even as the oppositely charged particles drawn unto an uncertain future.