well they still erased a gap of 4 minutes in the last 40 kms from floyd,he had at one time 9:20 because caisse d'epargne didn't want to chase no more.i'm absolutely sure that if they would have started to chase him hard earlier,they would caught him or at least minimize the losses at two-three minutes.
yes his performance was extreme but so were others in that tour.on joux plane he lost time just to sastre and moreau.of course there are other examples of riders going solo putting time on the other gc contenders from a breakaway:virenque,rasmussen,sella.not on everyone but almost
also the scorching heat probably helped,i've never seen something like that ever again with a rider cooling his engine so much.floyd used to love those 40 degrees.
the thing is just as you know,floyd told everything,really everything.still nothing particular about stage 17.