scruss/1000days_concept.md

## 1000days_concept.md

      
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              1000days_concept.md
            
          
    Thousand Days: Concept

Stewart Russell - scruss.com — 2024-03-26, at age 19999 days …
Summary

One's thousand day(s) celebration occurs every thousand days of a
person's life. They are meant to be a recognition of getting this far,
and are celebrated at the person's own discretion.
Who is this for?


Maybe your birthday's on a day associated with an unpleasant
event. Your thousand day will never coincide with your birthday.


Maybe your birthday's in the middle of winter, or in another part of
the year that you're not keen on. Your thousand day is every 2 years
and 3 seasons, so it shifts back by a season every time it happens.


Quantities and scale

1000 days is approximately:

2.738 years
2 years 269 days
2 years 8.85 months
2 years, 3 seasons.

4000 days is just shy of 11 years.
Disadvantages

Compared to regular birthdays, thousand days:


must be calculated; they're not intuitive when they're going to
happen. But we have computers and calendar reminders for that …


can be used to work out your actual date of birth, if someone knows
that you're going to be x000 days old on a particular day. It's
possible to know someone's birthday, but not know their age.


Implementations

Web

My ancient Your 1000 Day Birthday
Calculator, first published in 2002
and untouched since 2010.
Shell

So it turns out that GNU
date
can handle arbitrary date maths quite well. For example:
date --iso-8601=date --date="1996-11-09 + 10000 days"
returns 2024-03-27.
Other Ways

Excel or any other spreadsheet will do, too.
People with the same thousand day as you

This is an idea for finding people who have a thousand day on
the same day as you. I suggest using 1851-10-01 as a datum, because:

nothing particularly interesting happened that day;
it's conveniently 43000 days before my birthday.

then calculate
( (birth_date - 1851-10-01) mod 1000 ) + 1

This results in a number 1 – 1000. Everyone with the same number
shares a 1000 day birthday with you.
Why not 0 – 999?

No-one deserves to be a zero;
Wouldn't be much of a thousand day if it only went up to 999, would
it?

Incomplete list of people with day = 1

There are more, but these were found from Wikipedia's year pages

Momo Hirai, born 1996-11-09 (-10000 days)
Memphis Depay, born 1994-02-13 (-9000 days)
Mikhail Surenovich Aloyan, born 1988-08-23 (-7000 days)
Jeremy Lin, born 1988-08-23 (-7000 days)
Segundo Cernadas, born 1972-03-20 (-1000 days)
Sissel Kyrkjebø, born 1969-06-24 (0 days)
Maria Canals-Barrera, born 1966-09-28 (+1000 days)
Pernell Whitaker, born 1964-01-02 (+2000 days)
DONDI, born 1961-04-07 (+3000 days)
Richard Legendre, born 1953-01-19 (+6000 days)
Arnold Schwarzenegger, born 1947-07-30 (+8000 days)
Keith Emerson, born 1944-11-02 (+9000 days)
Harvey Keitel, born 1939-05-13 (+11000 days)
Agnès Varda, born 1928-05-30 (+15000 days)
Shoista Mullojonova, born 1925-09-03 (+16000 days)
Lucian Freud, born 1922-12-08 (+17000 days)
Huang Feili, born 1917-06-17 (+19000 days)
Kikuko, Princess Takamatsu, born 1911-12-26 (+21000 days)
Walter O'Malley, born 1903-10-09 (+24000 days)
León de Greiff, born 1895-07-22 (+27000 days)
Geoffrey Fisher, born 1887-05-05 (+30000 days)
Sara Teasdale, born 1884-08-08 (+31000 days)
Lee de Forest, born 1873-08-26 (+35000 days)
Carl Nielsen, born 1865-06-09 (+38000 days)

Licence

🅭 2024, Stewart Russell, scruss.com
This work is licensed under CC BY-SA
4.0.
There are no trademarks, patents, official websites, social media or
official anythings attached to this concept. Please take the idea
and do good with it.
So why aren't you implementing this further?

I've had this idea kicking around my head for at least the last 20
years. For $REASONS, it turns out I'm not very good at implementing
stuff. I'd far rather someone else took this idea and ran with it than
let it sit undeveloped.