Gotta argue with the 'true copy' aspect of the above, at least in one aspect. The copies must be, and are, in genetics as well as memetics, untrue copies or there would be no change over time, and we can all see that there is change over time. The offspring that improve in their changes will outperform those that stay the same or become worse. The mechanisms for change might be different in genetics and in memetics and may proceed at different rates but both must incorporate change.