The death of French nun Lucile Randon, known as Sister André, at age 118 — in fact, 25 days short of her 119th birthday — has revived the perennial question: how long can a person realistically hope to live? Sister André, the oldest living person until her death on Tuesday, held that mantle since April 19 last year, following the death of Japan’s Kane Tanaka at age 119 years and 107 days