I play with discs, math, computers. Used to play board games, before I had a daughter. He/him/his.

Joined September 2013
What makes a protest movement successful? Social Change Lab just finished a 6-month report looking into this and we're excited to share our results. We conducted a literature review, bespoke public opinion polling, interviews with experts, and more. What we found 🧵
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Erik Postma retweeted
Merry Christmas! (my cartoon for today’s @GdnSaturday / @GuardianBooks)
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I think the new richest person should be required to buy Twitter now and this cycle should continue until none of them are rich anymore
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Want to come by for a drink? Sure, what are your assassination coordinates?
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Erik Postma retweeted
hard to believe there was once a time where they’d send a big yellow book to everyone’s house listing yours and everyone else’s assassination coordinates
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Replying to @Grady_Booch
Seen on Mastodon which sums it up pretty succinctly…
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Erik Postma retweeted
You've seen Advent of Code, now get ready for Ramadan of Code. It's 30 days of no coding.
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Erik Postma retweeted
If you want to reduce your carbon footprint, focus on what you eat, not whether your food is local. The chart shows why: transport tends to account for only a small share of greenhouse gas emissions — the differences between different food choices are much larger.
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Elon Musk's Twitter just suspended the account of antifascist researcher @chadloder likely to suppress reporting on right-wing extremists. As I reported, Loder's painstaking research identifying a Proud Boy who attacked police on Jan 6 was cited by the DOJ theintercept.com/2021/11/10/…
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watching all these people that engineer anti-queer massacres like Colorado Springs every day post thoughts and prayers for the victims whose deaths they made with their own hands on a platform that is redesigning itself to deliver that bile and poison more freely and widely
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This seems like a big fucking deal that no one has picked up on: The American Medical Association has amended their ethical guidance to say that post-Roe, doctors should put their patients' health & safety first, even if it means breaking the law jessica.substack.com/p/abort…
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Anyone interested in a full-time job doing FLINT development should get in touch. I don't have funding at the moment, but given a qualified candidate (skilled with computer algebra *and* C programming), there's a decent chance that funding can be found.
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Erik Postma retweeted
Aaron Rupar
@atrupar18 Nov 2022
if this is my very last tweet, i just gotta say one thing -- I will never, ever, buy a Tesla
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Let V be a vector space over a field F with |V| < ∞. The following are equivalent: (1) The sum of all vectors in V is nonzero. (2) |V| = 2.
Mathematics. "Every person in your company is a vector. Your progress is determined by the sum of all vectors." ~Elon Musk, bit.ly/3knxxn6
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Harvard study found that hiring one highly productive ‘toxic worker’ does more damage to a company’s bottom line than employing several less productive, but more cooperative, workers.
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Just a reminder for International Inuit Day ❤️ Inuk = 1 🙋🏻‍♀️ Inuuk = 2 🙋🏻‍♀️🙋🏻‍♀️ Inuit = 3 or more 🙋🏻‍♀️🙋🏻‍♀️🙋🏻‍♀️ + So I would say I am Inuk (singular) and my family is Inuit (plural)
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A word on the idiocy known as "immunity debt". How did such a nonsensical idea take hold? Simple. The obvious mental model for our immune system is a muscle: use it or lose it. Muscles atrophy when we don't use them. The same mental model works for our memories & skills. 1/19
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Erik Postma retweeted
The most interesting lesson from this (saddening) thread is how much impact one person can have on the course of history, for better or worse, esp through training.
Recently I learned about a man who has trained 1,000+ people to block wind and solar projects. I read through all his training materials, presentations, and seminars. Here's what I learned about him and how his students plan to "win the war on clean energy." 🧵
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Erik Postma retweeted
I came up with a fun take on Pick's theorem yesterday as I was preparing for lecture. Remember that Pick's theorem gives a way to compute the area of a simple lattice polygon (that is, one whose boundary is connected). 1/n
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