Can we improve our craft over time? The Japanese artist Katsushika Hokusai (1760-1849) seemed to think so.
“Until the age of 70, nothing I drew was worthy of notice. At 110, every dot and every stroke will be as though alive.”
He only lived until 89, but he proved his theory of incremental improvement. He finished his most famous work, The Great Wave, at the age of 71. Van Gogh, an artist that only sold one painting during his lifetime–to this brother– remarked: “These waves are claws, the boat is caught in them, you can feel it.”
Hokusai's other works also revolve around Mount Fuji in series that became to be called Thirty-six Views of Mount Fuji.
Story short: age is but a number. Life is about continuity. You may have more energy to practice when you're younger, but the only difference between you and others will be how long you're willing to stick with it. Hokusai played the long-game, acting like professional with pertinacity.
You can check out the Hokusai: Beyond the Great Wave exhibit at the British Museum, London, until August 13th.