Great.

When is it too late to still be great?  Child genius means younger than twelve, thirteen at the most.  Music stars shine in their teens.  Olympic athletes peak in their twenties.  Models are done by thirty.  "40 Under 40" lists are self-explanatory.  Stories about people getting rich and retiring young are featuring younger and younger retirees.  Eventually you can become great again, but you have to be pretty old.  The eighty-something who finally got their college degree.  The ninety-year-old who kicks butt as an online gamer.  The 104-year-old power lifter.  What about 40s, 50s, 60s, 70s?  Can I still be great?  Do I still have time?