quote:
I don't consider viruses or prions alive as they meet only one of these criteria
But taking too literally that definition, we could consider that bacterial spores, which have been probed to germinate after centuries (and probably even millennia) of dormant state were not alive. Is cryptolife life?
Perhaps in the search of how life started, (and of extraterrestrial life), we should extend that definition, because we (still) have nothing to compare to.