Double-tapping the year bar asks for a birth year and a life expectancy,
and a second bar appears below measuring one against the other. Tab moves
between the two, Enter commits the pair, Escape drops them. Hovering the
bar names the thing, and double-tapping it puts it away again.
A birth year rather than an age, so the bar keeps counting on its own
instead of going stale the moment it is entered. Expectancy defaults to
ninety and falls back to it when what is entered makes no sense, so the
bar always has something to measure against; a birth year that makes no
sense leaves the bar hidden instead, which is also where it starts.
Putting the bar away keeps the expectancy, so setting a birth year again
brings your own number back rather than the default.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
