from the abstract of pdf: "We combine our esti- mates with the available literature on host immune response and viral mutation rates to demonstrate how antibod

from the abstract of pdf: "We combine our esti- mates with the available literature on host immune response and viral mutation rates to demonstrate how antibodies markedly out- number the spike proteins, and the genetic diversity of virions in an infected host covers all possible single nucleotide substitutions." in particular this V should not be overlooked. "...the genetic diversity of virions in an infected host covers all possible single nucleotide substitutions." this is similar to brute force exploits, as in trying all possible combinations, then filtering down to the instances that have effect, followed by selection a priori as most of us have experienced, brute force attacks can be very effective where immediacy is not an issue, and there are few bounds to number of iterations