JimmyFingers said:
And for all the frothing at the mouth the climb of Roche de Belle Filles caused, when Sky shredded the peloton, it was a short climb and saw each team member burn themselves up for a 1k before dropping back, none of it physiologically improbable
Bear in mind that Rogers was the first to be dropped after doing his turn, then
rode back to the group through a haze of dropped riders including favourites to win the race, former GT winners and known former dopers. Mick Rogers, of Freiburg and Ferrari fame, who hadn't done anything of note outside a time trial since May 2009, and even then was a mere shadow of his former self in the chrono.
Just because something's not physiologically impossible doesn't mean it is necessarily clean.
Comparing climbing times to Armstrong and Pantani and saying the times are more realistic, therefore more clean, is a misleading fact. In the days of Armstrong and Pantani, you could juice up to a much greater extent, therefore in order to gain that significant advantage over your opponents, you needed to be more juiced up, to extraterrestrial levels.
I.e., to get to 1996 Hautacam speed
relative to the competition, Bjarne Riis would require a lot more assistance than Chris Froome would need to get to 2012 PdBF speed, if we assume that both are similar natural talents (which is of course a massive leap of faith). This is because the péloton is cleaner than it was in 1996. Even the most ardent of clinic haters have to acknowledge this. But this does
not mean that cycling is in any better position, or even that fewer people as a percentage of the péloton are doping; more that, because of the advances in anti-doping, the amount of dope that riders can get away with taking is but a fraction of what it was in 1996.
However, and this is worth noting, this does mean that an amount of doping that would turn you into mediocre pack fodder in 1996 might be an amount of doping that would turn you into an unstoppable force now.