In the '80s I published a model for how DNA information is gained through natural selection. This analysis was part of a discussion regarding evolution of AIDS viruses. Although the model wasn't developed in a rigorous manner, I still think it has validity as an outline. The reader may view the original paper as recently scanned onto the internet. page 1              page 2 My position on AIDS has been expanded considerably since that time, although present ideas are still based on what was stated in that early paper. One major addition is the statement that "all viruses are male." The expanded material also contains mathematical cirticism of evolutionary trees. Article on AIDS and viruses