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David Radcliffe

@radcliffe.dev

Mathematician and dog walker in St. Paul, MN

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19.10.2023
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Latest posts by David Radcliffe @radcliffe.dev

Logo for the US Bicentennial.

Logo for the US Bicentennial.

14.03.2026 03:18 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
Psychosocial Wellbeing and Parenting Responses during Intensified ICE in Minnesota The most powerful, simple and trusted way to gather experience data. Start your journey to experience management and try a free account today.

Some professors at the University of St. Thomas are doing a research project on the effects of the ICE occupation on Twin Cities parents. They're looking for parents who are US citizens, who live in the Twin Cities metro area, and who have kids ages 5-10.

stthomas.az1.qualtrics.com/jfe/form/SV_...

09.03.2026 21:06 πŸ‘ 235 πŸ” 233 πŸ’¬ 8 πŸ“Œ 7

The problem with foreigners is they always want to know what love is

08.03.2026 01:34 πŸ‘ 322 πŸ” 37 πŸ’¬ 20 πŸ“Œ 4

Happy Square Root of Christmas to those who celebrate!
√(12.25) = 3.5

05.03.2026 19:19 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

At root this is the most depraved thing about right wing evangelical Christianity: asking god for forgiveness is about meaning it and proving through your actions that you mean it, not β€œGod whispered to me that I’m all good so shut the fuck up about it already lol”

05.03.2026 01:00 πŸ‘ 931 πŸ” 195 πŸ’¬ 44 πŸ“Œ 35
Claude AI chat page. The heading has been changed to "Who do you want to kill today?"

Claude AI chat page. The heading has been changed to "Who do you want to kill today?"

03.03.2026 18:26 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
MirrorChat

I created a ChatGPT replacement that is completely private. The downside is that you have to provide both sides of the conversation. radcliffe.dev/mirrorchat/

26.02.2026 23:21 πŸ‘ 4 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

I'm sure that this wouldn't have any unintended consequences.

26.02.2026 16:11 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
[I Wanna Drive The] Zamboni
[I Wanna Drive The] Zamboni YouTube video by Gear Daddies - Topic

youtu.be/BD5oBHGmes8?...

22.02.2026 15:15 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

So SCOTUS, with its fabricated-out-of-thin-air immunity doctrine, has actually made American presidents less accountable than LITERAL royalty.

19.02.2026 10:50 πŸ‘ 11200 πŸ” 3142 πŸ’¬ 30 πŸ“Œ 139

I think that it's unrealistic, and even a bit oppressive, to expect every student to be passionate about math. You can be successful in math even if it's not your favorite thing.

16.02.2026 19:13 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

AMERICA 25,000

09.02.2026 00:29 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

It appears MN vs ICE is now off NewsHour 's editorial agenda. One thing fascists understand is the short attention span of the American News media and its people. We're alone and on our own.

06.02.2026 23:39 πŸ‘ 56 πŸ” 12 πŸ’¬ 1 πŸ“Œ 0
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A large CAVA bag stuffed with what it says is $50,000 for White House Border Czar Tom Homan.

It’s been reported Homan took bribery money when he was recorded by the FBI accepting a bag full of $50,000 in cash.

β€œICE GTFO OF MN”

Minneapolis February 4, 2026

04.02.2026 23:07 πŸ‘ 8655 πŸ” 2331 πŸ’¬ 99 πŸ“Œ 108

Democratic voters want ICE to be abolished, and we won't settle for reforms.

04.02.2026 01:19 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Puerto Rico doesn't have the death penalty, and the mainland U.S. has its own history of political assassinations, so I don't know what Dave Landau is talking about.

03.02.2026 19:40 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I excluded ProPublica because they focus on investigative reporting but not general news reporting. Curiously, our local FOX affiliate named the officers. Sometimes they seem to be less conservative than our other network affiliates.

02.02.2026 02:25 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Are any of the mainstream media reporting the names of the agents who shot Alex Pretti?

01.02.2026 23:33 πŸ‘ 0 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

Wolstenholme's theorem?

01.02.2026 18:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
venmo: @renthelpmpls

venmo: @renthelpmpls

if you feel like passing around a link today and helping fundraise for rent that will actually get paid today (and in the next few days for families who have a grace period) you can send here.

we will be going hard all day. i won’t be posting about it because I don’t want to flood your feeds.

31.01.2026 18:10 πŸ‘ 528 πŸ” 596 πŸ’¬ 11 πŸ“Œ 30

And misogynistic, of course.

29.01.2026 20:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I finally understand why the man attacked Ilhan Omar with a mixture of vinegar and water. He was calling her a "douche". Get it???? It's so stupid it makes my head spin.

29.01.2026 20:16 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Trump: "People that own their homes -- we're gonna keep them wealthy. We're gonna keep those prices up. We're not gonna destroy the value of their homes so that somebody who didn't work very hard can buy a home."

29.01.2026 17:40 πŸ‘ 2055 πŸ” 635 πŸ’¬ 811 πŸ“Œ 928
Preview
Minnesota Orchestra on Instagram: "A program update for this weekend's concerts. We will be streaming this program live and free of charge on our YouTube channel tomorrow, Friday, January 30 at 8 p.m... 1,103 likes, 8 comments - minnorch on January 29, 2026: "A program update for this weekend's concerts. We will be streaming this program live and free of charge on our YouTube channel tomorrow, Frida...

The Minnesota Orchestra is changing its program for this weekend's performances in honor of Alex Pretti and Renee Good. Friday's concert will be livestreamed for free on YouTube.

29.01.2026 17:50 πŸ‘ 27 πŸ” 7 πŸ’¬ 0 πŸ“Œ 1

Yes, because every phrase in English has exactly one meaning and it is not necessary to consider the context in which it was uttered.

29.01.2026 17:52 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

It probably depends on the bank. My bank ATMs give $50 bills.

29.01.2026 15:03 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Today, Equifax extracts over $800 million worth of contracts from the federal government and state governments each year. Much of that total is for access to its Workforce Solutions product, the Work Number, which provides data on workers’ income and employment. The Work Number’s basic business model is to purchase exclusive rights to worker data from employers and payroll providers (often without a worker’s knowledge) and then sell that data to banks, creditors, and governments for a profit.

Today, Equifax extracts over $800 million worth of contracts from the federal government and state governments each year. Much of that total is for access to its Workforce Solutions product, the Work Number, which provides data on workers’ income and employment. The Work Number’s basic business model is to purchase exclusive rights to worker data from employers and payroll providers (often without a worker’s knowledge) and then sell that data to banks, creditors, and governments for a profit.

America has a taste for means-testing safety net policies, and not investing in state capacity to manage the resulting complexity. We focus a lot on how this makes life harder for clients, but it also creates the conditions where private actors who offer to solve this problem can extract rents.

29.01.2026 14:16 πŸ‘ 182 πŸ” 27 πŸ’¬ 2 πŸ“Œ 2

My "ICE is a legitimate law enforcement agency" shirt has people asking a lot of questions already raised by my shirt.

29.01.2026 13:32 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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29.01.2026 01:33 πŸ‘ 8001 πŸ” 2400 πŸ’¬ 155 πŸ“Œ 349

Let p(n) denote the partition function, the number of ways of writing n as the sum of positive integers.

Heffernan-MacHale Conjecture: If p(n) divides n!, then
n ∈ { 1,2,3,7,9,10,11,12,14,15,16,17,18,19,20,21,24,28,32,33,39 }.

Verified for n ≀ 2x10^6. See oeis.org/A046668

28.01.2026 00:00 πŸ‘ 25 πŸ” 6 πŸ’¬ 5 πŸ“Œ 0