It would be interesting to me how likely it is to actually find random sequences in the database. Aka how much correlation there is between natural viruses. In

It would be interesting to me how likely it is to actually find random sequences in the database. Aka how much correlation there is between natural viruses. In my imagination it is plausible that if you take a particular virus that you will be able to find most of its subsequences (with minor modifications) in other viruses. In that case I think that his analysis is sound. On the other hand, if the other viruses appear to be randomly sampled from the set of all possible sequences than his reasoning does not cut it.