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Paul Johnson

@ptwiddle.bsky.social

American mathematician in the UK. Mellowing in middle age. He/Him.

273 Followers  |  568 Following  |  318 Posts  |  Joined: 08.11.2024  |  1.748

Latest posts by ptwiddle.bsky.social on Bluesky

It helps to look convincingly happy about the things you're doing. It helps sell the sense that you're doing something because it aligns with your values. This government's default mode is to do something while handwringing that they had no other choice because someone else made them do it.

13.02.2026 11:19 β€” πŸ‘ 160    πŸ” 40    πŸ’¬ 5    πŸ“Œ 4

Answering the question of if I even lift with, no I’m obstructed

13.02.2026 01:30 β€” πŸ‘ 15    πŸ” 1    πŸ’¬ 3    πŸ“Œ 0
Preview
Jeff Goldblum should make a film about this legendary mathematician Paul ErdΕ‘s was one of the most prolific mathematicians to ever live, known for showing up at the door of others in the field and declaring they should host and feed him while they do maths together. H...

My latest maths column is a plea to Hollywood - when are we going to get a Paul ErdΕ‘s biopic starring Jeff Goldblum? www.newscientist.com/article/2514...

11.02.2026 09:24 β€” πŸ‘ 25    πŸ” 9    πŸ’¬ 3    πŸ“Œ 0

Once upon a time I was taking a train from East Berlin to Budapest. It was crowded to start with, and I was sitting on the floor, but everything got worse in Dresden, when many rowdy young E. Germans got on. They spilled beer on my head. They tripped over me. It was 2am and I didn’t want a fight…

10.02.2026 15:58 β€” πŸ‘ 138    πŸ” 40    πŸ’¬ 5    πŸ“Œ 14

Ski jumping penis injections is not the sequel I expected to Gay hockey drama

06.02.2026 12:59 β€” πŸ‘ 16    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
https://www.justice.gov/epstein/files/DataSet%209/EFTA00688479.pdf

From: Misha Gromov
To: "jeffrey E." <jeevacation@gmail.com>
Subject: Re:
Date: Wed, 01 Mar 2017 16:08:46 +0000
may be we talk by Skype, mine is
On Wed, 1 Mar 2017 09:49:03 -0500, jeffrey E. wrote:
can you send james simons a note. telling him that i am not as bad as google would lead one to believe , I
understand his wife is concerned.

https://www.justice.gov/epstein/files/DataSet%209/EFTA00688479.pdf From: Misha Gromov To: "jeffrey E." <jeevacation@gmail.com> Subject: Re: Date: Wed, 01 Mar 2017 16:08:46 +0000 may be we talk by Skype, mine is On Wed, 1 Mar 2017 09:49:03 -0500, jeffrey E. wrote: can you send james simons a note. telling him that i am not as bad as google would lead one to believe , I understand his wife is concerned.

https://www.justice.gov/epstein/files/DataSet%209/EFTA00682542.pdf

From: Misha Gromov
To: "Jeffrey E."
Subject: Re:
Date: Sun, 08 Nov 2015 20:15:07 +0000
Maxim Kontsevich is " the sharpest cutting edge" mathematically but not conversationally. Alain Connes, despite
his age (a year younger than myself) is full of fire and ideas.
Francois Taddei, a biologist, has a global view on science education.
Yves Oudeyer has a non-trivial vision and results on robotis
On Sun, 8 Nov 2015 20:34:05 +0100, jeffrey E. wrote:
no problem , see you in new york , cambridge. if you think i should meet someone here that you find cutting
edge. I d appreciate it
On Sun, Nov 8, 2015 at 7:41 PM, Misha Gromov a wrote:
This is tough, I leave for NY in four days and have only a couple evenings free.
On Sat, 7 Nov 2015 20:09:11 -0500, jeffrey E. wrote:
Im here in paris. if you have time

https://www.justice.gov/epstein/files/DataSet%209/EFTA00682542.pdf From: Misha Gromov To: "Jeffrey E." Subject: Re: Date: Sun, 08 Nov 2015 20:15:07 +0000 Maxim Kontsevich is " the sharpest cutting edge" mathematically but not conversationally. Alain Connes, despite his age (a year younger than myself) is full of fire and ideas. Francois Taddei, a biologist, has a global view on science education. Yves Oudeyer has a non-trivial vision and results on robotis On Sun, 8 Nov 2015 20:34:05 +0100, jeffrey E. wrote: no problem , see you in new york , cambridge. if you think i should meet someone here that you find cutting edge. I d appreciate it On Sun, Nov 8, 2015 at 7:41 PM, Misha Gromov a wrote: This is tough, I leave for NY in four days and have only a couple evenings free. On Sat, 7 Nov 2015 20:09:11 -0500, jeffrey E. wrote: Im here in paris. if you have time

people are underselling the role of Misha Gromov as a fixer for Epstein, someone who helps him extend his network of influence by softening his reputation and making high profile introductions. Perhaps non-mathematicians won't know these names but this is not a small thing

04.02.2026 11:09 β€” πŸ‘ 56    πŸ” 15    πŸ’¬ 3    πŸ“Œ 0
tweet, sharing a graph that shows students using generative AI perform 48% better on practice tests, but 17% worse on real exams

Caption:

I knew this would inevitably happen as AI got better.

If you're not using AI -- people who use it to study will cognitively pass you in critical thinking.

tweet, sharing a graph that shows students using generative AI perform 48% better on practice tests, but 17% worse on real exams Caption: I knew this would inevitably happen as AI got better. If you're not using AI -- people who use it to study will cognitively pass you in critical thinking.

put it in the Louvre

04.02.2026 09:23 β€” πŸ‘ 156    πŸ” 43    πŸ’¬ 11    πŸ“Œ 5

Sticking with The Weakerthans " Our Retired Explorer (Dines With Michel Foucault in Paris, 1961)" even after I remembered there was a parenthetical and does that count?

04.02.2026 07:39 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

"I'm hoping your viewers are so ignorant that I can spin an utterly routine pattern that happens for extremely well understood demographic reasons as evidence of imaginary fraud."

03.02.2026 20:38 β€” πŸ‘ 232    πŸ” 47    πŸ’¬ 14    πŸ“Œ 2

XYit. Manbandonment.

03.02.2026 20:04 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

"A budget is a statement of our values..."

Would be nice to hear this reflected in how we discuss financial modelling in UK HE. Currently, we seems to stuck at "number go up, number go down" rather than what kind of institution are we and why?

03.02.2026 11:19 β€” πŸ‘ 14    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0

Depressingly convincing argument that the lower percentage of men getting college degrees is due to make flight. I feel like I've seen this argument before? It doesn't feel like it bodes well for already struggling higher education.

02.02.2026 19:21 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Somehow misuse of "inflection point" doesn't hurt me as much as "exponential" used to mean "really big".

01.02.2026 16:38 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

Unknown photographer

10.01.2026 14:15 β€” πŸ‘ 195    πŸ” 41    πŸ’¬ 4    πŸ“Œ 5

Absolutely surreal to continue to hear about drawdowns and lowered temperatures and things calming down in Minneapolis when, as far as I can tell, literally nothing has changed on the ground

31.01.2026 12:06 β€” πŸ‘ 2355    πŸ” 530    πŸ’¬ 39    πŸ“Œ 37
Two bsky posts from mathematicians, doing the "5 courses you took as an undergrad" meme, with the first four of each being mostly liberal arts courses and the last one being differential geometry.

Two bsky posts from mathematicians, doing the "5 courses you took as an undergrad" meme, with the first four of each being mostly liberal arts courses and the last one being differential geometry.

Two mutuals in a row doing it with the same bit I was using, so I'll tweak it and do five undergrad courses where we just read a single book:

1. Structure and Interpretation of Computer Programs
2. Tristram Shandy
3. Pale Fire
4. Ulysses
5. Three-Dimensional Geometry and Topology

31.01.2026 09:20 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I passed the swimming test! But I not the general fitness test so I still had to take gym courses.

Running, weights, and badminton.

31.01.2026 09:13 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
OFTEN THE DYING ASK FOR A MAP

So when Locie, embraced by the great softness 
of bed #12, her late blizzard of silver hair
fanning out beneath head and shoulders, asked 
for one in plaintive, almost desperate tones, 
I went out to my car and brought back my old, 
frayed roadmap of Kansas, and she followed
the unfolding as if it in itself were a miracle, 
and then held it over her head, scanning 
the red interstates and blue country roads 
without apparent method or intent but 
smiling her morphined grand smile of awe and wonder within an air of childhood surprise and overwhelming acceptance.
Because here it wasβ€”the way there, or here, or out or over or in, and here, sweetie, let me hold it for you, let me hold... and 
her trembling index finger knows no certain path but wanders through the Flint Hills toward 
Cottonwood Falls, then darts up toward Ossawatomie, and she can smell the new wheat, 
its dark green deep as the jade of the necklace 
her husband brought home from the war in the Pacific. And now as she crosses 
the Kaw River, she sees a young woman 
standing beneath the moon in a 
In Kansas, and wondering, what will I be?
Who will I marry? Where will we live?
Will I have children? And if, at the end, 
I am lost, how will I find my way home?

OFTEN THE DYING ASK FOR A MAP So when Locie, embraced by the great softness of bed #12, her late blizzard of silver hair fanning out beneath head and shoulders, asked for one in plaintive, almost desperate tones, I went out to my car and brought back my old, frayed roadmap of Kansas, and she followed the unfolding as if it in itself were a miracle, and then held it over her head, scanning the red interstates and blue country roads without apparent method or intent but smiling her morphined grand smile of awe and wonder within an air of childhood surprise and overwhelming acceptance. Because here it wasβ€”the way there, or here, or out or over or in, and here, sweetie, let me hold it for you, let me hold... and her trembling index finger knows no certain path but wanders through the Flint Hills toward Cottonwood Falls, then darts up toward Ossawatomie, and she can smell the new wheat, its dark green deep as the jade of the necklace her husband brought home from the war in the Pacific. And now as she crosses the Kaw River, she sees a young woman standing beneath the moon in a In Kansas, and wondering, what will I be? Who will I marry? Where will we live? Will I have children? And if, at the end, I am lost, how will I find my way home?

I love this B.H. Fairchild poem so much.

31.01.2026 07:17 β€” πŸ‘ 85    πŸ” 24    πŸ’¬ 8    πŸ“Œ 2

So I vividly remember hearing Mosquito by The Necks at Rare and Racy. Not exactly beating the allegations, but if this is wrong who wants to be right?

youtu.be/eBrTXWXj4kY?...

30.01.2026 18:07 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The tone of Trump's post could easily be Kinbote in Pale Fire.

30.01.2026 12:46 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image Post image Post image Post image

Staff ,supporters and students gathered outside Firth Court today in solidarity with colleagues locked out and facing withheld pay after lawful strike action at
@sheffielducu

Punishment is not negotiation. ✊

29.01.2026 18:04 β€” πŸ‘ 43    πŸ” 31    πŸ’¬ 1    πŸ“Œ 2

Shame nobody from UCU is quoted in this article

29.01.2026 13:08 β€” πŸ‘ 14    πŸ” 10    πŸ’¬ 1    πŸ“Œ 0

We're just concerned that such a qualified tree-shaker as yourself would quickly want to "get your lovin' on the run" and move to a different firm.

29.01.2026 12:00 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Very impressive CV but I can't help but noticing you're skipping over this "Maurice" entry. Can you explain to us clearly what you were doing when you were speaking of the "Pompatus of Love"?

29.01.2026 11:29 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Infuriating to read about the government parting itself on the back for funneling money to giant corporations in the name of "education" at the same time as they're sitting on their hands as the entire University system implodes.

29.01.2026 10:21 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I will simply never recover from reading this sentence:

"Since Georgia implemented work requirements in 2020, they have spent twice as much on Deloitte consultants and administrative costs as on healthcare for people."

28.01.2026 16:33 β€” πŸ‘ 3886    πŸ” 1923    πŸ’¬ 47    πŸ“Œ 92

I'm sorry, but the reaction to Brianna Ghey being murdered by people she knew offline *because she was transgender* becoming 'we should stop teenagers from being on social media' rather than 'we should deal with the recent horrifying rise of transphobia in the UK' is unbelievably fucking bullshit.

28.01.2026 18:32 β€” πŸ‘ 1090    πŸ” 360    πŸ’¬ 1    πŸ“Œ 0

πŸ«‚ can't imagine. It's weird enough watching from across an ocean at a place that was home 40 years ago.

Been thinking of you all a lot.

28.01.2026 21:24 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
This is the biggest targeted training
programme since Harold Wilson started the
Open University (note).

This is the biggest targeted training programme since Harold Wilson started the Open University (note).

Open to all UK adults online, taking as little
as under 20 minutes, the courses will give

Open to all UK adults online, taking as little as under 20 minutes, the courses will give

founding partners - Accenture, Amazon, Barclays, BT, Google, IBM, Intuit, Microsoft, Sage, SAS and Salesforce to take the Al Skills Boost programme to the next level and upskill 10 million workers with Al skills
by 2030.

founding partners - Accenture, Amazon, Barclays, BT, Google, IBM, Intuit, Microsoft, Sage, SAS and Salesforce to take the Al Skills Boost programme to the next level and upskill 10 million workers with Al skills by 2030.

The government’s suggestion that rolling out 20 minute courses on writing β€œAIβ€œ prompts, sponsored by Google, Microsoft and Amazon, is somehow comparable to the founding of the Open University (the Wilson governmentβ€˜s, & Jennie Lee’s, proudest achievement), is an insult to our human intelligence.

28.01.2026 08:37 β€” πŸ‘ 834    πŸ” 313    πŸ’¬ 37    πŸ“Œ 55
Settings > Appearance

Settings > Appearance

Showed one of the dissidents how to change the app icon in Signal, for when the security forces grab your phone to check if you have it. Some of you need to know this.

28.01.2026 13:07 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

@ptwiddle is following 20 prominent accounts