dmarthal
banner
dmarthal.bsky.social
dmarthal
@dmarthal.bsky.social
Applied Mathematician learning how to make things learn. Tell me about your Probabilistic Model Based Reinforcement Learning! I have two amazing labradoodles and an even more amazing human family!
Reposted by dmarthal
Truly just want MacKenzie Scott and Melinda French Gates to start a new newspaper with all the journalists fired from WaPo, CBS, and every other leading media outlet pandering to Trump, and absolutely start a new media empire.
February 8, 2026 at 4:56 PM
Reposted by dmarthal
President poops pants on tape.
00:33 - it happens
00:50 - Trump gestures to leave
00:53 - Lady behind him gestures it's a code 2
00:54 - PR staff usher everyone out
01:08 - Hot mic catches PR staffer saying "Are we gonna flip for this, or what are we gonna do?...I really can't do this again"
The comments on this video are all over it lmao. It happens at 0:33 seconds, you can hear it, the woman in green immediately notices, and they end this event in an EMERGENCY.

www.youtube.com/watch?v=u_6k...
Trump Does Not Take Reporters' Questions After Signing Executive Order In The Oval Office
YouTube video by Forbes Breaking News
www.youtube.com
February 2, 2026 at 4:43 PM
Reposted by dmarthal
The Zapruder film we deserve
President poops pants on tape.
00:33 - it happens
00:50 - Trump gestures to leave
00:53 - Lady behind him gestures it's a code 2
00:54 - PR staff usher everyone out
01:08 - Hot mic catches PR staffer saying "Are we gonna flip for this, or what are we gonna do?...I really can't do this again"
The comments on this video are all over it lmao. It happens at 0:33 seconds, you can hear it, the woman in green immediately notices, and they end this event in an EMERGENCY.

www.youtube.com/watch?v=u_6k...
February 3, 2026 at 1:13 AM
Reposted by dmarthal
Put another way, we could get rid of corn ethanol, switch 30% of the freed-up farmland to solar to generate 100% of US electricity, and use the other 70% of the freed-up land for whatever we want.
February 1, 2026 at 8:57 PM
Reposted by dmarthal
What do you MEAN the president audibly SHIT himself live on camera and they immediately cancelled the press conference and rushed everyone out of the room like it's a fire drill, and it happened two days ago, and I'm just hearing about it NOW?
February 1, 2026 at 4:00 PM
Reposted by dmarthal
For those in southwest Ohio worried about a possible ICE surge next week, you can sign up to connect with community here:

docs.google.com/forms/d/e/1F...
GET INVOLVED
This group is for communities in the Greater Cincinnati & Northern KY area to protect neighbors targeted by ICE and over-policing—especially Hispanic, Black, immigrant, undocumented, trans, queer, and...
docs.google.com
January 31, 2026 at 7:41 PM
Reposted by dmarthal
#rstats bat signal:

If any of y'all have experience with multilevel multinomial logistic regression, with {brms}, Kruschke and I could use your help. This is your chance to influence the upcomming textbook. discourse.mc-stan.org/t/problem-in...
Problem in multilevel (hierarchical) multinomial logistic regression (with brms)
I have posted a teaser of the issue at my blog, copied below. The data The predicted variable is a categorical response, named resp with levels ‘1’, ‘2’, ‘3’, and ‘4’ (nominal labels, not numerical...
discourse.mc-stan.org
January 30, 2026 at 3:02 PM
Reposted by dmarthal
WHO removing Us Flag
January 23, 2026 at 9:45 PM
Reposted by dmarthal
Reminder that in solidarity with today's anti-ICE general strike in Minnesota, I am donating all proceeds from today's newsletter to People over Papers, the Midway-Hamline Diaper Bank, and Every Meal. Sign up for PN through the links in this edition 👇 to support good causes.
What if we just stopped paying taxes?
Where there's a will there (might) be a way.
www.publicnotice.co
January 23, 2026 at 3:16 PM
Anyone hooked an iphone up to a mac mini M4 pro to run a quadruped?

Where you all at?
January 23, 2026 at 1:24 AM
Reposted by dmarthal
Hi everyone -- there is a general strike in Minnesota tomorrow to protest what the Trump administration and DHS are doing to our community. In solidarity with the action, I am going to donate my revenue from tmrw's newsletter to People over Papers, the Midway-Hamline Diaper Bank, & Every Meal. (1/2)
January 22, 2026 at 10:17 PM
Reposted by dmarthal
I just woke up from a nap and somehow while I was asleep, everyone on the bus has figured out we are not going to the right place
January 20, 2026 at 1:57 AM
Reposted by dmarthal
"You're asking me about something that the president just said... He's never going to implement it... We should talk instead about what he's doing... Every time we get distracted by what he talks about rather than what he does... he destroys and he redistributes to the rich."
January 19, 2026 at 10:56 PM
Reposted by dmarthal
Still trying to figure out where to watch the Bears game? Join us at Sketchbook in Skokie!!!!
DA BEARS WATCH PARTY!

Join the Kat for Illinois campaign as we watch the Bears upset the Rams in the divisional!

This Sunday at 5PM at Sketchbook Brewing Co.
📍4901 Main Street, Skokie
January 18, 2026 at 11:25 PM
Reposted by dmarthal
We have now deactivated our X account.
Please share our bluesky account with people that have an interest in mathematics education, and maths manipulatives
@cuisenaireco.bsky.social
#mathseducation #manipulatives #playislearning #pedagogy #cuisenairerods
January 16, 2026 at 10:09 AM
Reposted by dmarthal
People who aren't in Minnesota might not know that if you drive or walk past pretty much any school, there's going to be a group of people, parents and childless, standing guard to make sure the kids are safe from feds. It's pretty remarkable. And very disturbing. www.mprnews.org/story/2026/0...
Twin Cities students walk out, decry ICE as surge continues
Hundreds of Twin Cities high school students walked out of school Monday to protest federal immigration enforcement in Minnesota. Officials are increasingly concerned about high absenteeism in some sc...
www.mprnews.org
January 13, 2026 at 2:41 PM
Reposted by dmarthal
Folx! If you are at the Joint Mathematics Meetings you can peek at my forthcoming book bc the bound page proofs are on display at the Princeton University Press booth! Also, since I’m not there, thx to the friend who took this pic. And I’m so grateful if you spread the word online + at the meeting.
January 4, 2026 at 8:11 PM
Reposted by dmarthal
Found out today there is a guy walking from Punta Arenas in Chile to Hull, UK. He started in 1998.

He crossed the Bering Strait on foot. 152 miles following shifting ice.

He also crossed the Darien Gap and swam the Caspian Sea in his "Goliath Expedition". 🤯

en.wikipedia.org/wiki/Karl_Bu...
Karl Bushby - Wikipedia
en.wikipedia.org
January 2, 2026 at 3:39 AM
Reposted by dmarthal
A public database of ice, ice agents, DHS, etc. Has now been built and it's entirely outside of the US and US government reach.
We Built a Public Record of ICE Because They Refuse to Keep One
Tracking Immigration Enforcement as It Accelerates Under Authoritarian Rule
open.substack.com
December 25, 2025 at 12:50 AM
Reposted by dmarthal
BREAKING: WATCH the full 60 Minutes CECOT segment here. This was sent to me anonymously. It appears to be the segment CBS' Bari Weiss killed. www.muellershewrote.com/p/watch-the-...
WATCH: The 60 Minutes CECOT Segment
I was sent the CECOT segment anonymously in a group chat.
www.muellershewrote.com
December 22, 2025 at 10:46 PM
Sharing one of my all time favs with the kids. Oldest is learning about the ocean so we looked at: neal.fun/deep-sea/
The Deep Sea
Scroll down the deep sea in this interactive page.
neal.fun
December 21, 2025 at 2:23 PM
Where my TorchRL peeps at?
December 20, 2025 at 11:10 PM