We observe birthdays annually, advancing one year every 365 days (plus one day in a leap year). This cycle is tied to planetary motion, of course, reflecting the orbit of the earth around the sun.
I remember when Emily celebrated Autumn’s pi-day at 3.14 years old. Imagine if instead of observing annual birthdays, we all marked pi birthdays. (A one-pi birthday is three years and 51 days, a two-pi birthday is six years and 102 days, and so on.) This might be ideal for those who like to shave years off their actual age. “How old are you anyway, Dee?” “Well, I am coming up on 18 pi … still a teenager.”
Conversely, we could also celebrate metric birthdays. A metric birthday is not quite as long as a pi birthday, and uses a different taxonomy. (A one-kilo birthday is 1,000 days, a two-kilo birthday is 2,000 days, and so on.) If someone asked me how old I am today, I could reply , “Today I am 19.9 kilodays old. On April 30 I’ll hit the big 20-k!”
So here’s a little fun. As of today (ages rounded to one decimal point):
▪ Brenda is 18.2 kilodays old
▪ Ben and Emily are respectively 10.8 and 9.5 kilodays old
▪ Autumn and Prairie are respectively 1.9 and 1.3 kilodays old
▪ Lisa and Brian Higginson are 10.2 and 12.3 kilodays old
▪ Vaughn and Dean are 1.3 and 0.2 kilodays old
▪ Brian and Laura Wangerin are 9.6 and 8.5 kilodays old
▪ Laura is 8.4 kilodays old
▪ Lindsey and Dustin are 7.5 and 8.9 kilodays old
Maybe I’ll figure out pi-birthdays later. Right now my head hurts, but I also feel much younger!
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