>>16693191 (OP)my opinion on the matter of whether viruses are life forms is something along this line:
in nature, even outside of biology, there is no single unit of anything in the universe. if you have one element or isotope, there's always more than one atom of it, if you have a molecule, for sure there are more than one unit of it. similarly, in biology, it's impossible to have one (01) unit of a cell/species. if you have an animal species, there's more than one individual. likewise, if you annihilated all but one species from the planet, it wouldn't survive. life is a network. not an individual, nor an species, not even an ecosystem, it is the whole biosphere. the entire earth biosphere is the "unit" for life on earth. and viruses are part of that, they're absolutely essential in all ecosystems, life would be radically different without them, and I'd wager that if you could make all forms of viruses vanish instantly, that life on earth wouldn't survive or, at least, it would cause a mass extinction event. so, from these optics, I'd argument that viruses are indeed part of the lifeforms of earth.