I see what you are saying. To some extent this is already true ,since high frequency ngrams(substrings) already dominate the gene-pool if they happen to facilit

I see what you are saying. To some extent this is already true ,since high frequency ngrams(substrings) already dominate the gene-pool if they happen to facilitate the production of a large amount viable offspring. That is why you would see swearwords with high frequency since that is what many people use for passwords(in the case of the myspace list).