This is my hobby too!

The parable of the polygons is a super-cool way of thinking about pedagogy, a super-cool way of thinking about the usefulness of dynamical modeling, and a super-cool way of thinking about how our world became so polarized (maybe even a thought about how to address that): ncase.me/polygons/

The Callais ruling is the latest evidence that the real problem with #SCOTUS is that it can do whatever it wants without any fear of pushback from Congress. The way to fix that is by making the Court *accountable* again, something that expanding it or imposing term limits won't actually accomplish:

In our recent EID letter: Serial Interval and Intervention Efficiency in Pertussis Outbreak, South Korea, 2024, we re-analyzed Cho et al.'s outbreak data to recover the unmitigated serial interval — what would be expected without case isolation. wwwnc.cdc.gov/eid/article/... @jdushoff.bsky.social

you are creating a culture of violence against us by accurately reporting on the culture of violence we're gleefully inflicting on others

Liverpool FC is not mathematically out of the EPL title race! They've been on the knife's edge since last week, but still survive. (1/3)

Priceless post from the official White House social media

What do British people even think "clear" means? For that matter, what do they think "ahead" means, if anything? If the other team has two games in hand, you're not 9 points "clear" -- you're merely 9 points ahead-for-now. More like 3 points clear. Thanks for coming to my Ted talk.

One of these political leaders has been repeatedly portrayed as an untrustworthy radical hostile to others because of his religious beliefs. You’’ll never guess which one!

A student told me the other day that I reminded him of Phil Jackson. He knows about Phil Jackson from The Last Dance, so maybe Jackson reminded him of me. In any case, other than tall, old, white guy, I'm really not seeing it.

My whole family is Eastern European Jews. We got out decades before the Holocaust, but there's still a connection. 1/3

Protip: If you're wearing a golden noose on your lapel, you're not one of the good guys. www.cbc.ca/news/world/i...

Remember this when the Supreme Court rules against Trump on this one: they've done a lot on the way that will make things worse in the future. When right-wingers rage about the decision, it will be in part to cover that up. Poopoopoo

Not sure I've ever seen anything like this: a predicted 10°C increase in three hours – after dark! Curious to see if this will happen in reality.

When you laugh, you make a "la" 🎶 out of "ugh" 😒

Very well said.

I like it when people handwrite "Out of courtesy to others" on signs, because I can choose to read it to myself as "out of courtesy to otters".

This legislation is disgusting on many levels. The Analysis link is also worth reading. www.cbc.ca/news/world/i...

This article from @uk.theconversation.com makes some interesting points, but I find the statistical philosophy horrifying. theconversation.com/truth-or-mis....

Just look at the difference

When I woke up this morning the centigrade temperature was three times the fahrenheit temperature. But by 9 AM it was already 10 times the fahrenheit temperature and the ratio was climbing at a dizzying rate!

In a long-form piece, I address recent claims by the Editor-in-Chief of @science.org that "quiet" insiders rather than "heated" activists should be credited for passage of top-line budget numbers for science and medical research. joshuasweitz.substack.com/p/science-ad...

Accounting for heterogeneity among hosts, even if done very simply, can have dramatic effects on models' ability to parse out patterns.

Why indeed? Because it's exactly what you would expect. The shots are excellent -- and led to "measles-elimination status". But they're not perfect.

Measles is spreading. The number of cases in vaccinated people will continue to go up (although not as fast as the number in unvaccinated people). These "breakthrough" cases will be used for #antivax propaganda. Public health needs to be ready.

I need somehow to recast how I think about the US Executive branch: I have to stop being horrified that they cross this line or that line and just accept that they are the enemy, and that nothing is holding them back except public opinion -- no law, no morality www.stevevladeck.com/p/205-chief-...

This post about violence and norms www.popehat.com/p/we-should-... from @kenwhite.bsky.social is both perceptive and bold.

Any continuous function that is both non-increasing and non-decreasing attains its global maximum at exp(τ), and its global minimum at -exp(-τ)!, where τ≈6.283 is the circle constant. You can read actually interesting perspectives on τ at www.tauday.com/tau-manifesto.

I know it's everything all the time these days, but this feels like a big deal: Until now, [the Reporters Committee for Freedom of the Press] said, the Justice Department had “never executed a search warrant at the home of a reporter in a national security leak case.” www.cnn.com/2026/01/15/m...

New preprint! We had a look at the codon and dinucleotide usage of rabies clades that circulate in specific host species, and found some interesting differences, particularly between carnivore- and bat-associated clades 👀 Coauthors on bluesky: @jdushoff.bsky.social @matt-arnold-bio.bsky.social

Can interactive web apps help biology students become better modellers? Stephan Peischl's group is running an ethics-approved study. Learn more at: peischllab.github.io/MEEW.html Contact [email protected] to receive the survey link. @spei.bsky.social

Video message from Federal Reserve Chair Jerome H. Powell: www.youtube.com/watch?v=KckG... www.federalreserve.gov/newsevents/s...

Some nice press coverage from our #DavidEarn-led article on CANDID (Canadian Notifiable Disease Incidence Dataset) archive.ph/jRBfz See also journals.plos.org/globalpublic... bsky.app/profile/jdus... @davidearn.bsky.social @cfts.bsky.social

Just wow. @pluralistic.net.web.brid.gy came out swinging in this article. He's right though and that's the coolest part.

Many thanks to cofounder @asinclair.bsky.social & the entire SCIMaP team (scienceimpacts.org) for collaborative work to confront federal cuts to science and medical research; together, our effort was recognized as a 2025 Public Health Hero in @thenation.com. a 🧵 www.thenation.com/article/soci...

This is a really cool project, I was lucky to have the opportunity to participate. news.mcmaster.ca/mcmaster-res...

Is this a typo? I think they meant to say "settles" instead of "raises".

Shouldn't the US Secretary of Defense have _some_ idea what "fog of war" means? theintercept.com/2025/12/02/c...

Shouldn't the Attorney General of a US state have _some_ idea what "fundamental right" means?

When people say that firing on the shipwrecked is “clearly illegal” according to the Pentagon's own War Manual, they don't _just_ mean that it is explicitly mentioned as illegal. ... ogc.osd.mil/Portals/99/d...

I found these notes from #BenBolker about file formats for plots and diagrams to be pretty useful. Your mileage may vary. bbolker.github.io/bbmisc/graph...

"I'm going to the US to see the Chaos" can be interpreted in two very different ways.

Nobody in the press corps should call POTUS anything but "Piggy" (or "Mr Piggy" out of respect for the office) until he apologizes. Like everyone waving their hands for his attention should be like, "Piggy, Piggy! What do you think about murdering journalists?" www.msn.com/en-us/video/...

Amidst a government shutdown in which the White House has proposed slashing federal support of science by billions of dollars, our #SCIMaP team continues to assess the impact of research cuts on communities nationwide. Learn more about our efforts: scienceimpacts.org With more to come... a 🧵

Launched in March 2025 as a joint project between the University of Maryland & the University of Pennsylvania and now supported by a grant from Open Philanthropy, #SCIMaP focuses on assessing the impacts of federal cuts to science on communities nationwide: cmns.umd.edu/news-events/...

Don’t let the frogwater that’s boiling us alive let you skip over this: we murdered another country’s citizens in cold blood, and when their leader objected, we called him a drug dealer and cut off aid to his country. That’s freakish.

joshuasweitz.substack.com/p/not-all-wa... from @joshuasweitz.bsky.social

From global health leader to global health pariah. #ThanksDonald! healthpolicy-watch.news/un-declarati...