Yorick › Life in weeks and countdown
The memento mori grid is a genuinely good idea. It stops working the moment you have to invent the number of squares.
The grid comes from a simple and powerful observation: a human life is a small enough number of weeks that you can draw all of them on one screen. Fill in the ones you have spent and the picture does something no birthday ever manages.
But the grid needs a total, and almost every app that draws one gets its total the same way: it asks you to type a life expectancy, or it quietly assumes 80 years and moves on. Both choices put the most important number in the picture entirely outside the model. A grid built on a guess is a mood board, not a measurement. If you assume 80 and the tables say 74, you have drawn six years you do not have.
Yorick draws the grid only after it has an estimate to draw it from. The arithmetic is deliberately plain:
For scale: at 52.1775 weeks a year, an eighty year life is about 4,174 weeks. A person of 30 has already spent roughly 1,565 of them.
Alongside the grid the app runs a live counter to your estimated date in days, hours, minutes and seconds. Seconds are not there for drama. They are there because a number that only changes once a day is easy to file away as a fact about somebody else, and one that moves while you look at it is not.
The reveal screen leads with the same idea in a single unit, the number of days left, before the home screen breaks it down.
Yorick starts from the US Social Security Administration period life table for 2022, shifts it to your country using United Nations figures covering 234 countries and territories, and then moves it with your 19 answers using effect sizes from named studies. The result is a date with a likely range around it, and only then does it become a picture.
That order also makes the grid respond to you. Retake the quiz after a real change and the boundary between lit and unlit moves, because the total moved. A grid built on a typed 80 can never do that, however carefully it is drawn.
The app can export your constellation as a card, with the date, the likely range, and a line stating that it is a statistical estimate and not medical advice. That last line travels with the image on purpose. A death date screenshot without its margin is exactly the thing this whole site is arguing against.
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