A count of what's ahead
Every ordinary thing happens a countable number of times. Tell it a little about yourself and watch the numbers move.
These tick while you watch.
Dates that come around on their own schedule.
Everyday things, at typical rates.
Slow things happening around you the whole time.
Rare events with fixed dates, and the chance you'll be there to see them.
The years ahead come from US actuarial tables, adjusted by published research on how each answer above shifts the odds. Answers that overlap (like activity and weight) are softened so they don't double count.
Calendar dates are weighted by the chance of reaching each one, so a New Year's Eve fifty years out counts for less than next month's full moon. Rates for heartbeats, breaths, words and the rest are typical adult averages from physiology and behavior studies.
Everyone is a little different from any table. Treat these as good guesses, not promises.