Interesting, but is not great statistics. One of the bigger problems with determining the max age of humans is how few samples we have, and the cohort effects for the population that survived the last century. One interpretation of the Flynn effect (assuming it isn't just an over-fitting to the training sample issue) shows that better nutrition for three generations has dramatic effects on things like height, fluid and crystal intelligence, and general health. We may find over the next century that 120 year number getting pushed out by a bit. The part on the Olympians was, as the article you linked stated, ignoring the huge effect of doping on performance. Any idea if there are replacement parts for people yet that outperform the bits we are born with?