Cory Jarrell (@cdjarrell) header
Cory Jarrell (@cdjarrell) profile picture

I♥️Learning. ''I arise in the morning torn between a desire to save the world and a desire to savor the world. This makes it hard to plan the day.''- E.B. White

Kansas City, MO
Joined October 2011
Photo by Cory Jarrell (@cdjarrell)Photo by Cory Jarrell (@cdjarrell)Photo by Cory Jarrell (@cdjarrell)Photo by Cory Jarrell (@cdjarrell)Photo by Cory Jarrell (@cdjarrell)Photo by Cory Jarrell (@cdjarrell)Photo by Cory Jarrell (@cdjarrell)Photo by Cory Jarrell (@cdjarrell)Photo by Cory Jarrell (@cdjarrell)Photo by Cory Jarrell (@cdjarrell)
A new process for writing/thinking that I'm trying out 1. New Google Doc, hit record/transcribe 2. Let loose a 2-3 minute stream of thoughts/ideas on a subject, some good some bad. No editing 3. Ask ChatGPT to take those ramblings and turn it into a 500 word blog by @morganhousel
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Game Ain't Based On Sympathy
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Today's the last Pythagorean triple day this century
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Standardized testing is going to come roaring back in importance once colleges figure out that HS grades don't mean anything anymore in some districts. There's going to be no other signal that separates students from others, even personal essays will all be modal with AI
The teacher who gives a failing grade has to explain it to the student, the parents, and the principal. The teacher who gives everyone an A has a quiet weekend. Still confused about how grade inflation has gotten so bad?
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The skill I'm most jealous of in others is the ability to explain things simply, clearly, and concisely. Or Efficient Knowledge Communicators (ekcs). Think of people like Paul Graham, Grant Sanderson (3b1b), Steven Strogatz, Kyla Scanlon, Neil deGrasse Tyson, roon, etc.
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Made a little site to learn about architecture, visually architecture.pascal.app/
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Why NFL Teams Hire the People Who Win This Contest
The 2027 Big Data Bowl is live #BigDataBowl
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1-0!
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Every college syllabus should include these graphs. Use AI for homework, you will get it done faster and get a higher grade, and then get crushed on the exam.
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How home runs are measured in MLB ⚾️
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Differentiation gave mathematics a language for changing slopes. Integration gave it a language for accumulating quantities and areas. Together, they transformed the study of motion, change, and modern analysis.
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There are a couple of universal patterns that show up across fields that you should apply to pretty much anything: - Use a written process because memory isn't reliable (see aviation checklists, surgery, mise en place, SOPs...) - Stop early when something is wrong (Andon cord, feature flags, turnaround time, error budgets...) - Leave a buffer (Margin of safety, safety stock, taper, defense in depth...) - Fix the system rather than blame people (Blameless post-mortems, poka-yoke, Swiss cheese model...) - Get feedback fast (OODA, kaizen, canary releases, after-action reviews...) - Hand over with a fixed format (SBAR, BLUF, commander's intent...) - Ramp up gradually (10% rule, canary releases, position sizing....)
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Math needs a phonics-style reckoning. This is a fantastic article by @mattyglesias. Thank you for writing this piece on math and for the shout out. You've explained my position perfectly. Drilling & mastering the basics isn't the enemy of understanding. It's a prerequisite! open.substack.com/pub/matthe…
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This video from 2 years ago could be improved, so I used ChatGPT and Claude to make attempts and then used Codex with Astra 6 to build off of those attempts. I think this video is a much simpler and more intuitive way of thinking about the Quadratic Formula.
Sharing my first video: A quick introduction to a different form of the Quadratic Formula that I believe is more intuitive, easier to write, and just makes more sense - both visually and algebraically
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For anyone interested, this is called "The Interstellar Experience" by Tony Ann.
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What is EPA in football?
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"In a time of drastic change it is the learners who inherit the future. The learned usually find themselves equipped to live in a world that no longer exists." — Eric Hoffer, 1973
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It's mind bending walking around the same place simultaneously in two timelines Inside the frame it's winter, and outside the frame it's summer - until you step inside. Recorded this footage in the winter and localized it against a massive 3d scan of the same ranch in the summer. You can follow the camera from the outside, then step into the moment I recorded. We spend so much time looking at memories through 2d rectangles in our camera roll. It's a strange feeling to walk around one instead. Like navigating through space instead of scrolling through time. The geospatial memory palace continues to come to life!
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Es simplemente lo mejor que vi desde que se inventó la rueda. Subí el volumen.
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Near me is an intersection that has 2 old school bar restaurants and 1 fancy restaurant on it. Well the fancy restaurant has a door that doesn't look like it's a door and I've learned that it's always funny to watch a nicely dressed couple walk cluelessly around a building
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The scene is always the same: they walk hand in hand, him helping her cross the street in her heels, walk confidently past the door, around the side, turn around at the parking lot, then he starts getting embarrassed and angry and let's go of her hand and a worker opens the door
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