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David Petersen

@calcdave.bsky.social
413 followers 449 following 175 posts

A fisher of minds in central Ohio

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David Petersen @calcdave.bsky.social · 21/09/2026
I've watched some of your creation streams on Twitch and it's a far cry from anything AI "creators" would be doing. I think I "get" what this person would be doing, but I would not want to look at it.
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David Petersen @calcdave.bsky.social · 21/09/2026
Multiply both sides by x. So 20x = 8x^2
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Matt Enlow @unsolvedmre.bsky.social · 01/07/2026
My feelings about A.I. and math
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David Petersen @calcdave.bsky.social · 02/09/2026
@ologies.bsky.social Thank Pete that the NSF doesn't accept audio grant applications or else @pgirguis.bsky.social would get all the funding! Really personable interview and great voice. I also learned a lot! Thanks for sharing!
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David Petersen @calcdave.bsky.social · 25/08/2026
but we just had "Success with Consequences!"
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David Petersen @calcdave.bsky.social · 23/08/2026
static.klipy.com
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Prof. Nicole Holliday @mixedlinguist.bsky.social · 13/08/2026
I’m in Denmark, trying to figure out why everything seems to run so much smoother here, and this is a bit part of it. The society is built on social trust, and even as a tourist (!) I’m pretty sure that I’m not being scammed around every single corner. Constant vigilance is exhausting.
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Anna F. Walker @spyglassart.bsky.social · 10/08/2026
When Shel Silverstein predicted AI
HOMEWORK MACHINE
The Homework Machine, oh the Homework Machine, Most perfect contraption that's ever been seen.
Just put in your homework, then drop in a dime, Snap on the switch, and in ten seconds time, Your homework comes out, quick and clean as can be.
Here it is-"nine plus four?" and the answer is "three."
Three?
Oh me . ..
I guess it's not as perfect As I thought it would be.
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David Petersen @calcdave.bsky.social · 06/08/2026
Smile! Miles of Emil's Slime and Limes
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David Petersen @calcdave.bsky.social · 01/08/2026
Looks great! A fun project for a birthday weekend. Enjoy it, friend!
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David Petersen @calcdave.bsky.social · 26/07/2026
I see how you made the acronym: Trump IM CRaP
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David Petersen @calcdave.bsky.social · 24/07/2026
"Come in and know me better, man!"
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David Petersen @calcdave.bsky.social · 22/07/2026
And go outside and use your eyes to see the things around you doing the things!
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David Petersen @calcdave.bsky.social · 17/07/2026
Just don't make it too garish
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David Petersen @calcdave.bsky.social · 16/07/2026
Drink a liter of water before you say it, though
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David Petersen @calcdave.bsky.social · 14/07/2026
@ifycomedy.com I really enjoyed this week’s @gamechanger.dropout.tv episode and your performance was a major part of that. Thanks for the fun!
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David Petersen @calcdave.bsky.social · 09/07/2026
NIAGARA FALLS! Slowly I turned... My parents would always quote this scene whenever that was mentioned. youtu.be/WFtTMGyYdLc...
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Daily Spurious Correlation 🤖 @dailycorrelation.bsky.social · 08/07/2026
xkcd comics published about statistics correlates with The number of concierges in Ohio (r=0.921)
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David Petersen @calcdave.bsky.social · 06/07/2026
rain, I think
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David Petersen @calcdave.bsky.social · 30/06/2026
I need a nap
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David Petersen @calcdave.bsky.social · 29/06/2026
static.klipy.com
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David Petersen @calcdave.bsky.social · 24/06/2026
I enjoyed the images and reading about them. Whoever writes your ALT text is doing a great job, too! I'm a sighted person, but found myself wondering what I was looking at and the ALT text helped!
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David Petersen @calcdave.bsky.social · 15/06/2026
It's Matrix's Neo visiting the Architect, but instead of the TVs showing this scene from other timelines, it's showing other Keanu movies.
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David Petersen @calcdave.bsky.social · 12/06/2026
Whoever is doing @ifycomedy.com 's hair for this tournament is going above nad beyond! I love it!
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David Petersen @calcdave.bsky.social · 12/06/2026
When that happens to me, I usually conclude by asking if they wouldn't mind transferring me to a manager to say I had a good interaction with this person.
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David Petersen @calcdave.bsky.social · 26/05/2026
It's like adult carpet time. I get to have a story read to me while I look at the pictures (when there are some) and follow along.
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Franchesca Ramsey @chescaleigh.bsky.social · 24/05/2026
why does the “you can’t fight it” rhetoric around AI feel so familiar?? 🤔
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David Petersen @calcdave.bsky.social · 20/05/2026
80s business person from Futurama and Fry saying, "Don't you worry about blank. Let me worry about blank."
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David Petersen @calcdave.bsky.social · 16/05/2026
A2
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David Petersen @calcdave.bsky.social · 03/05/2026
Me to 7yo: What's half of 56? 7yo: I dunno. 23? Me: No, that'd be half of 46. 7yo: Oh, then it's 28.
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David Petersen @calcdave.bsky.social · 01/05/2026
Do you want to talk about...dark woods at night?
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Edward Luce @edwardluce.bsky.social · 29/04/2026
Reminder to those who can't seem to grasp distinction between median and average. US average income in 2024 was $76,000. US median income was $44,000. The difference is vast inequality. And $44,000 is not a good living.
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Dr Space Junk (Alice Gorman) @drspacejunk.bsky.social · 20/04/2026
Are we meant to forgive SpaceX's destruction of LEO, astronomy, and the night sky for this?
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Matt Salomone @matthematics.com · 20/04/2026
#ITeachMath
IN THIS HOUSE, WE BELIEVE:
YOU ARE NOT A TEST SCORE EVERYONE IS A "MATH PERSON" NEGATIVES HAVE SQUARE ROOTS NO FRACTION IS IMPROPER MATH IS A HUMAN ACTIVITY GOOD TEACHING MATTERS
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David Petersen @calcdave.bsky.social · 15/04/2026
T-Rex, I have a solution! Narrow the field enough and you CAN be THE expert in that specific thing. Then you bump out the borders a bit or connect another idea to become an expert in something like, "how stomping houses is related to meeting the same friends in the same place every day."
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David Petersen @calcdave.bsky.social · 13/04/2026
You know what else is made crunchier? Sweet pickles with ice cream.
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David Petersen @calcdave.bsky.social · 13/04/2026
That would throw a wrench into the 1009
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David Petersen @calcdave.bsky.social · 12/04/2026
It would reduce the number of off-by-one errors if you knew every loop would start with i=I instead of zero.
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Martha Wells @marthawells.com · 08/04/2026
The next Murderbot is out on May 5 www.barnesandnoble.com/w/platform-d...
barnesandnoble.com
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David Petersen @calcdave.bsky.social · 06/04/2026
Ancient dice found in North America showing that Indigenous Americans may have used them to play with other groups they meet. www.thisiscolossal.com/2026/04/ice-...
thisiscolossal.com
12,000 Years Ago, Native Americans Were Playing Games of Chance with Handmade Dice
New research suggests that games of chance developed much earlier—to the tune of 6,000 years—than originally thought.
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Rebecca R Helm @rebeccarhelm.bsky.social · 02/04/2026
The #1 problem with AI: "...the tool requires expertise to validate, but its use diminishes expertise and stunts its growth." taggart-tech.com/reckoning/
taggart-tech.com
I used AI. It worked. I hated it.
I used Claude Code to build a tool I needed. It worked great, but I was miserable. I need to reckon with what it means.
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David Petersen @calcdave.bsky.social · 02/04/2026
BIODIVERSITEASE!
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David Petersen @calcdave.bsky.social · 02/04/2026
My dad was a chemistry professor and I learned to write loopy lower-case Ls so they wouldn't look like 1s.
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Dr Space Junk (Alice Gorman) @drspacejunk.bsky.social · 30/03/2026
For the first time, a person who is not a white, American man will see the Moon close-up* with their own eyes. I'm eager to see with their vision. Will it be the same or different? Which cultural influences will be uppermost? #ArtemisII *From 8, 000 km 🧪
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David M. Perry @lollardfish.bsky.social · 21/03/2026
The world does not need more undergraduate history essays but does need more people who can write good ones.
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David Petersen @calcdave.bsky.social · 21/03/2026
The art is fun, but you can see in the back of the Darko pic how much fun everyone was having! Love it!
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David Petersen @calcdave.bsky.social · 27/02/2026
Are "teacher" or "educator" not applicable in the way you want?
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David Petersen @calcdave.bsky.social · 27/02/2026
They sing really loudly
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Christopher Danielson @triangleman.bsky.social · 19/02/2026
"Math is not true because we tell kids it is true; math is true because they can find that truth for themselves. We can find these truths together."
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