New biostats preprint: Supercentenarians and the oldest-old are concentrated into regions with no birth certificates and short lifespans Several years ago was this, not sure if it has been discussed before: Japan, Checking on Its Oldest, Finds Many Gone  The Japanese pensions scandals (published in the international journal of pensions!) Bit of an overstatement, as we still have prospective epidemiology that generally agrees with the overall principles, but. Does anyone think this casts doubt on accepted blue zone anecdata?