sorry, for those mystified by my comment: Lisa's sarcastic remark about cycling up Mt Everest reminded me of a rather explosive thread from, maybe a year ago, in which a young woman made some rather extravagant claims about having bested a whole paceline of experienced road bike riders while on her mountain bike. The forum's collective response was, at first, "you GO girl!", but soon turned to questioning and then to unmitigated rage, prompting at least one administrator to intervene.

I would agree that we don't know what liz999 is capable of or even the particulars of her tour. Just a look at the crowds lining the TDF routes during the race--most of whom got there under their own steam-- should be proof enough that it is possible for mere mortals to "get up there". Maybe not at a break neck speed, or with comfort or ease, but it is possible...