And by the way even with drugs the person that does not have the genetic disposition will still be slower than the person that has the genetic natural ability for high aerobic work. Conversely people who have the high aerobic ability and take drugs may or may not benefit from the drug because each drug has a different affect on each one of us.
Do you have any examples for that statement? (italicized and in bold)
That would be simple to deduce. For example a person that was not genetically gifted outputs 300W peak power for 10 minutes. They then take EPO and increase their performance by 15%. The usual gain is 10-15% in most cases. So a 15% increase will result in a 345W output. An athlete that is genetically predisposed will naturally output 400W - 500W for the same 10 minutes without EPO. We are not taking into account rider weight. This is just a number example.
The link below explains it better.