The 70-year-old at the gym every morning is the best argument against quitting at any age.

Age gets used as a reason to stop long after it stops being a real one. Somebody decades ahead of you is still turning up, which means the ceiling you imagined was never where you placed it. What ends most streaks is a story about being too late, not a body that refused.

Notice the next time you tell yourself the window has closed on something. Pick one thing you set down because of your age or your stage, and do the smallest version of it this week. Consistency is the whole trick, and it does not check your birth year.