whether sardinia has dead 110 y/os listed as alive in their census is irrelevant, bc the blue zone data comes from demographers going door-to-door and doing extensive research to verify that each centenarian's age is valid. the "debunking" was by a plant scientist w/o experience in gerontology (3/3)

but my understanding is basically: there are a few blue zones where records were faulty or destroyed, but that has nothing to do with the validity of blue zones, which are not identified by looking at census/government data but rather by painstaking groundwork. (2/3)