Under the rules, how different is that from something like just taking caffeine?
Doping is usually in reference to banned substances. But huffing CO genuinely seems completely out of left field of any rules that I know. They probably will ban it, but before they do is it correct to call it doping?
Every single world class athlete spends most of their waking hours coming up with the most clever "biological hacks" to give themselves an edge. Training regimens, diets, rest and recovery schedules, equipment, sports psychology support, etc. etc. all are optimized to the nth degree to give athletes an edge.
I think you are missing the point of pro cycling to be honest.
As other commenters have said, the very purpose of this all is to see who can cheat in a way that's not outright illegal.
We are at a point of such peak human performance and conditioning that if you bring in equalisers such as the same bike for everyone etc, you'll just have a whole peloton crossing the finish line at the same time.
Doping is usually in reference to banned substances. But huffing CO genuinely seems completely out of left field of any rules that I know. They probably will ban it, but before they do is it correct to call it doping?