Dan Piponi
@dpiponi.mathstodon.xyz.ap.brid.gy
Disclaimer:
👽 My opinions are not my own. They're beamed to me by aliens
Current life:
🎮 Epic Games
Previous lives:
🍩 PhD in Riemann theta functions
🧬 Glaxo […]
🌉 bridged from ⁂ https://mathstodon.xyz/@dpiponi, follow @ap.brid.gy to interact
👽 My opinions are not my own. They're beamed to me by aliens
Current life:
🎮 Epic Games
Previous lives:
🍩 PhD in Riemann theta functions
🧬 Glaxo […]
🌉 bridged from ⁂ https://mathstodon.xyz/@dpiponi, follow @ap.brid.gy to interact
Pinned
I made an off by one error subtracting 3 hours from 12am. 😭😂😢😿🤣
It's a blessing and a curse.
I don't feel I understand some mathematics until I think I could have invented it myself and I try to reach that stage. Well that's an illusion so I should qualify it a lot - I need to feel like if I was suitably "primed" I could have invented it. There's no way I […]
I don't feel I understand some mathematics until I think I could have invented it myself and I try to reach that stage. Well that's an illusion so I should qualify it a lot - I need to feel like if I was suitably "primed" I could have invented it. There's no way I […]
Original post on mathstodon.xyz
mathstodon.xyz
December 2, 2025 at 8:10 PM
It's a blessing and a curse.
I don't feel I understand some mathematics until I think I could have invented it myself and I try to reach that stage. Well that's an illusion so I should qualify it a lot - I need to feel like if I was suitably "primed" I could have invented it. There's no way I […]
I don't feel I understand some mathematics until I think I could have invented it myself and I try to reach that stage. Well that's an illusion so I should qualify it a lot - I need to feel like if I was suitably "primed" I could have invented it. There's no way I […]
I think the British really need to stop using the word "jab" as a synonym for "(hypodermic) injection".
December 1, 2025 at 11:05 PM
I think the British really need to stop using the word "jab" as a synonym for "(hypodermic) injection".
My lost AirTag sailed over the Gulf of Mexico and now it's in Guatemala. I wonder if it's about to take a road trip.
November 30, 2025 at 8:30 PM
My lost AirTag sailed over the Gulf of Mexico and now it's in Guatemala. I wonder if it's about to take a road trip.
While I'm on the theme of Star Trek typos...
November 30, 2025 at 7:08 PM
While I'm on the theme of Star Trek typos...
If you're not seeing the problem, look closely.
Very embarrassing. They still haven't fixed that "chartered" error on the web site.
Very embarrassing. They still haven't fixed that "chartered" error on the web site.
November 29, 2025 at 7:14 PM
If you're not seeing the problem, look closely.
Very embarrassing. They still haven't fixed that "chartered" error on the web site.
Very embarrassing. They still haven't fixed that "chartered" error on the web site.
I made an off by one error subtracting 3 hours from 12am. 😭😂😢😿🤣
November 28, 2025 at 11:42 PM
I made an off by one error subtracting 3 hours from 12am. 😭😂😢😿🤣
Reposted by Dan Piponi
Sometimes I just get an idea and it won't go away
November 28, 2025 at 11:18 AM
Sometimes I just get an idea and it won't go away
I mentioned a little while back the tiny suspicion some of us had about the number of cancers among ex colleagues who worked with us on Alameda naval base - you know, the one with the "nuclear wessels".
Anyway, this is about the naval base 8 miles away just over the bay. Hard to not be paranoid […]
Anyway, this is about the naval base 8 miles away just over the bay. Hard to not be paranoid […]
Original post on mathstodon.xyz
mathstodon.xyz
November 28, 2025 at 5:25 AM
I mentioned a little while back the tiny suspicion some of us had about the number of cancers among ex colleagues who worked with us on Alameda naval base - you know, the one with the "nuclear wessels".
Anyway, this is about the naval base 8 miles away just over the bay. Hard to not be paranoid […]
Anyway, this is about the naval base 8 miles away just over the bay. Hard to not be paranoid […]
Reposted by Dan Piponi
"Runctitiononal features"? "Medical fymblal"? "1 Tol Line storee"? This gets worse the longer you look at it. But it's got to be good, because it was published in Nature Scientific Reports last week: www.nature.com/articles/s41... h/t @asa.tsbalans.se
November 27, 2025 at 9:30 AM
"Runctitiononal features"? "Medical fymblal"? "1 Tol Line storee"? This gets worse the longer you look at it. But it's got to be good, because it was published in Nature Scientific Reports last week: www.nature.com/articles/s41... h/t @asa.tsbalans.se
When I pick up RPG rules the thing that stands out to me is lists: lists of character classes, skills, magic items, spells, monsters and so on. So when looking for precursors its worth checking out lists as well as fiction and games.
I picked this book up on […]
[Original post on mathstodon.xyz]
I picked this book up on […]
[Original post on mathstodon.xyz]
November 27, 2025 at 10:32 PM
When I pick up RPG rules the thing that stands out to me is lists: lists of character classes, skills, magic items, spells, monsters and so on. So when looking for precursors its worth checking out lists as well as fiction and games.
I picked this book up on […]
[Original post on mathstodon.xyz]
I picked this book up on […]
[Original post on mathstodon.xyz]
Not having grown up in the US I'm not 100% sure what does and doesn't count as "taffy" but it's a great subject for a paper. Connects to the topic of rational tangles that I touched on at my ICFP talk years ago.
https://arxiv.org/abs/2511.19461
https://arxiv.org/abs/2511.19461
November 27, 2025 at 6:04 PM
Not having grown up in the US I'm not 100% sure what does and doesn't count as "taffy" but it's a great subject for a paper. Connects to the topic of rational tangles that I touched on at my ICFP talk years ago.
https://arxiv.org/abs/2511.19461
https://arxiv.org/abs/2511.19461
If I was applying for a PhD today I think the topic I'd pick would be related to random matrices. The content of this paper illustrates why in the most readable summary I've come across […]
[Original post on mathstodon.xyz]
[Original post on mathstodon.xyz]
November 26, 2025 at 3:32 PM
If I was applying for a PhD today I think the topic I'd pick would be related to random matrices. The content of this paper illustrates why in the most readable summary I've come across […]
[Original post on mathstodon.xyz]
[Original post on mathstodon.xyz]
Ooops...on lego.com
November 25, 2025 at 7:12 PM
Ooops...on lego.com
The other thing I miss about DOS is "typeahead". It used to work. There was basically one keyboard and one "window" and they were connected by a FIFO buffer.
Nowadays there are hundreds of layers of object between you and the guts of the API (including animated simulated layers of transparency) […]
Nowadays there are hundreds of layers of object between you and the guts of the API (including animated simulated layers of transparency) […]
Original post on mathstodon.xyz
mathstodon.xyz
November 24, 2025 at 10:44 PM
The other thing I miss about DOS is "typeahead". It used to work. There was basically one keyboard and one "window" and they were connected by a FIFO buffer.
Nowadays there are hundreds of layers of object between you and the guts of the API (including animated simulated layers of transparency) […]
Nowadays there are hundreds of layers of object between you and the guts of the API (including animated simulated layers of transparency) […]
I think I posted a version of this claim before but this one is even more strongly worded. This is from Jon Peterson's "Playing at the World" on the history of RPGs and it's about the rules for resolving combat between combatants in Kriegspiel, an early (19th […]
[Original post on mathstodon.xyz]
[Original post on mathstodon.xyz]
November 24, 2025 at 4:00 PM
I think I posted a version of this claim before but this one is even more strongly worded. This is from Jon Peterson's "Playing at the World" on the history of RPGs and it's about the rules for resolving combat between combatants in Kriegspiel, an early (19th […]
[Original post on mathstodon.xyz]
[Original post on mathstodon.xyz]
When I called the Yoneda lemma the hardest trivial thing in mathematics it must have resonated with a lot of people. My claim popped up in Notices of the AMS.
https://www.ams.org/journals/notices/202511/rnoti-p1248.pdf
https://www.ams.org/journals/notices/202511/rnoti-p1248.pdf
November 24, 2025 at 1:06 AM
When I called the Yoneda lemma the hardest trivial thing in mathematics it must have resonated with a lot of people. My claim popped up in Notices of the AMS.
https://www.ams.org/journals/notices/202511/rnoti-p1248.pdf
https://www.ams.org/journals/notices/202511/rnoti-p1248.pdf
Nice wargaming set from 1812. By the father of this chap
https://en.wikipedia.org/wiki/Georg_von_Reisswitz
https://en.wikipedia.org/wiki/Georg_von_Reisswitz
November 22, 2025 at 8:32 PM
Nice wargaming set from 1812. By the father of this chap
https://en.wikipedia.org/wiki/Georg_von_Reisswitz
https://en.wikipedia.org/wiki/Georg_von_Reisswitz
Vibe coded my first complete application for my Mac last night.
I wanted to read some comic strips from scans of a magazine in standalone book form. (Dragon - I even have the legal [1] CD-ROM archive.)
The TOC in the PDFs isn't 100% usable for this. So the generated app brings up a UI that […]
I wanted to read some comic strips from scans of a magazine in standalone book form. (Dragon - I even have the legal [1] CD-ROM archive.)
The TOC in the PDFs isn't 100% usable for this. So the generated app brings up a UI that […]
Original post on mathstodon.xyz
mathstodon.xyz
November 21, 2025 at 6:49 PM
Vibe coded my first complete application for my Mac last night.
I wanted to read some comic strips from scans of a magazine in standalone book form. (Dragon - I even have the legal [1] CD-ROM archive.)
The TOC in the PDFs isn't 100% usable for this. So the generated app brings up a UI that […]
I wanted to read some comic strips from scans of a magazine in standalone book form. (Dragon - I even have the legal [1] CD-ROM archive.)
The TOC in the PDFs isn't 100% usable for this. So the generated app brings up a UI that […]
While we're at it can the Moron-in-Chief sue all the other media for editing his ravings to hide the fact that the President of the US is dumber than a dead salmon?
November 21, 2025 at 4:41 AM
While we're at it can the Moron-in-Chief sue all the other media for editing his ravings to hide the fact that the President of the US is dumber than a dead salmon?
November 20, 2025 at 10:18 PM
Hypothesis: when you speak [1] you often subconsciously generate sentences with nice prosody. I think you may also do this when you write - but only on the first draft when you're streaming your consciousness.
The reason I say this is that when I go back and edit something I've written, I may […]
The reason I say this is that when I go back and edit something I've written, I may […]
Original post on mathstodon.xyz
mathstodon.xyz
November 20, 2025 at 10:00 PM
Hypothesis: when you speak [1] you often subconsciously generate sentences with nice prosody. I think you may also do this when you write - but only on the first draft when you're streaming your consciousness.
The reason I say this is that when I go back and edit something I've written, I may […]
The reason I say this is that when I go back and edit something I've written, I may […]
It makes me happy that there are people in the world who, when I idly wonder about something, have already done the research.
The iridescence you see sometimes see in meat, especially bacon, is likely caused by alternating muscle layers acting as a photonic […]
[Original post on mathstodon.xyz]
The iridescence you see sometimes see in meat, especially bacon, is likely caused by alternating muscle layers acting as a photonic […]
[Original post on mathstodon.xyz]
November 20, 2025 at 8:28 PM
It makes me happy that there are people in the world who, when I idly wonder about something, have already done the research.
The iridescence you see sometimes see in meat, especially bacon, is likely caused by alternating muscle layers acting as a photonic […]
[Original post on mathstodon.xyz]
The iridescence you see sometimes see in meat, especially bacon, is likely caused by alternating muscle layers acting as a photonic […]
[Original post on mathstodon.xyz]
Today I learnt about Jenny Hanivers. Excuse me while I go off and have a nightmare.
Meanwhile, enjoy the picture of the Morkoth from the first edition Monster Manual.
Meanwhile, enjoy the picture of the Morkoth from the first edition Monster Manual.
November 19, 2025 at 3:39 AM
Today I learnt about Jenny Hanivers. Excuse me while I go off and have a nightmare.
Meanwhile, enjoy the picture of the Morkoth from the first edition Monster Manual.
Meanwhile, enjoy the picture of the Morkoth from the first edition Monster Manual.