For some people, youth is just a warm-up. In the video above, mental_floss List Show host John Green names 27 amazing accomplishments of people over the age of 80, both historic and current. Ranging from athletes and artists to scholars, politicians, and postmen, they’re proof that you’re never too old to achieve big things—even if it’s simply going on a water skiing trip to Mexico to celebrate your 100th birthday.

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