I don’t think we know what is genetically possible for any number of the reasons I have pointed out previously.
If cycling was the only sport in the world, none of the current guys would be the ones to beat.
All I see is people guessing at the rider’s weight and power meter numbers that could be 5% lower or higher than what would be found in a lab. Essentially there is a lot of measurement noise and I’m not sure what conclusions you guys could draw from that. On top of that, we only have a sample of the best athletes who have taken up cycling as sport, who had the right coaching, and the right discipline to pursue it this far. They are not the most genetically gifted, in any discipline, at any time, of anyone in the world. Likely, that person isn’t a cyclist and possibly not even a pro athlete, and will forever be an unknown.
It’s a silly argument to make.