Nobody Cares About Pi Day.
That's Why It's Perfect.
March 14, 2026. Today is Pi Day. Yesterday was Friday the 13th. I keep getting told nobody cares about any of the stuff I talk about. Good. More pi for us.
3.14159...
The ratio that runs the universe
62.8T
Known digits of pi (and counting)
1+
Friday the 13ths per year (guaranteed)
0
People who asked for this page
I published a blog post yesterday about an executive order that could reshape the American mortgage market. Before that, I wrote about the largest financial fraud in US history. Before that, I built a 3D kiteboarding simulator. And before that, I ranked every time Tom Cruise has sprinted on screen.
The response, consistently, from people in my life: “Nobody cares about this.”
And they're right. Most people don't care about the ratio of a circle's circumference to its diameter. Most people don't care that every year is guaranteed to have a Friday the 13th. Most people don't memorize digits of an irrational number for fun.
But the people who do care? Those are my people. And today is our day.
Yesterday Was Friday the 13th
And it will happen again. It always does.
Friday the 13th happened last month. It happened in November. It happens every single year, at least once, and can happen up to three times. This isn't a coincidence — it's a mathematical certainty built into the Gregorian calendar by Pope Gregory XIII in 1582.
Read that name again. Gregory the Thirteenth. The man who designed the calendar we all use was literally the 13th pope named Gregory. And in the 400-year cycle of his calendar, the 13th of each month falls on Friday more often than any other day of the week — 688 times out of 4,800. The man was either trolling or a genius. Both, probably.
Top 10 Ways to Celebrate Pi Day
All interactive. All from your browser. All because nobody asked for this.
#1: Pi Memory Challenge
Type the digits of pi from memory. No peeking. How far can you go?
π
3.14159265...
You know the rest. Right?
#2: Draw a Perfect Circle
Freehand. No undo. Pi is watching.
Draw here
#3: Pi Trivia
7 questions. Glen commentary included at no extra charge.
How many digits of pi does NASA use to calculate interplanetary trajectories?
#4: Friday the 13th Explorer
Every year has at least one. The genius who designed the Gregorian calendar made sure of it. Scroll through the years and see for yourself.
3 Friday the 13ths in 2026:
February, March, November
2026 has the maximum: THREE Friday the 13ths. The calendar gods were feeling chaotic.
January
February
March
April
May
June
July
August
September
October
November
December
The Proof: The Gregorian calendar repeats every 400 years (146,097 days = exactly 20,871 weeks). In that cycle, the 13th of each month falls on Friday more often than any other day — 688 times. Friday is literally the most common day for the 13th. Pope Gregory XIII, who introduced this calendar in 1582, was clearly trolling.
#5: Eat Pie at Exactly 1:59:26 PM
Because 3/14 1:59:26 = 3.1415926. This is the Pi Day purist's power move.
3 / 14 1:59:26 PM
Set an alarm. Buy a pie. This is not optional.
Acceptable pies: apple, pumpkin, pecan, key lime, pizza (it's round). Unacceptable pies: humble pie (save that for your enemies).
#6: Tell Someone About Pi (Watch Their Eyes Glaze Over)
The true Pi Day tradition. Bring it up in conversation. Time how long it takes for them to change the subject.
You: "Did you know pi is irrational?"
Them: "Cool. Did you see the game last night?"
Time to subject change: 4 seconds
You: "Pi has been calculated to 62.8 trillion digits."
Them: "Why?"
Time to subject change: 2 seconds
You: "Einstein was born on Pi Day."
Them: "Huh. Anyway..."
Time to subject change: 3 seconds
You: "The 13th falls on Friday more than any other day."
Them: "Are you okay?"
Time to subject change: 1 second
#7: Read Something Nobody Cares About
In the spirit of Pi Day, here are some deep dives that nobody asked for. They're all great. Trust me.
#8: Measure Something Round
Go find anything circular. A plate. A tire. A manhole cover. A pizza. Measure the circumference and the diameter. Divide. Get pi. Feel the math.
The formula you've known since 7th grade:
C ÷ d = π
Every circle. Every time. Since the beginning of the universe. It never changes. It never rounds nicely. It just keeps going. That's the whole thing about pi.
#9: Watch Pi (1998) by Darren Aronofsky
A paranoid mathematician finds patterns in the stock market using number theory. Shot in black and white on a $60,000 budget. It made $3.2 million. That's a 53x return. Buffett would approve.
“12:45, restate my assumptions...”
The protagonist drills a hole in his own head at the end. This is what happens when you take math too seriously. I'm showing you this page as a cautionary tale.
#10: Do Something Nobody Cares About
This is the real one. The one that matters.
Pi Day exists because someone at the San Francisco Exploratorium in 1988 decided the date 3/14 was worth celebrating. Nobody asked him to do this. Nobody cared. He did it anyway. Now Congress has recognized it and millions of people celebrate it every year.
Every interesting thing in the world started with someone doing something nobody cared about. The blog post nobody reads. The game nobody plays. The analysis nobody asked for. The math nobody thinks about.
Do the thing anyway. Nobody cared about pi either. Now it has its own day.
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Read moreNote: No pies were harmed in the making of this page. Pi (π) is an irrational number, meaning it cannot be expressed as a simple fraction and its decimal representation never ends or repeats. Much like this website. Pi Day is not affiliated with any pie company, though it should be. The author holds no position in pies, circles, or the number 13.