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Dan Piponi

@dpiponi@mathstodon.xyz
mastodon 4.5.7

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 Group Research
💥 Mass Illusion, Esc, ILM
🎈 Google X, Verily, Google

Likes:
🚴 I like to bike
🏃 I like to run
🎛️ my musical tastes lie towards the electronic end of the spectrum
🚀 I like Andor *and* The Mandalorian
📈 I have an OEIS entry https://oeis.org/A387361

0 Followers
0 Following
Joined April 27, 2022

Posts

dpiponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
Dan Piponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
@dpiponi@mathstodon.xyz · Mar 02, 2026

I don't know if this is a real effect or not but "Zeigarnik effect" seems like a good name for a subjective feeling that I bet everyone finds familiar.

For example, an unfixed bug stays uppermost in your mind but the moment it's fixed I feel like it quickly fades - annoyingly so because sometimes you feel like you've just met the same problem again but can't remember the previous time.

And on a sadder note, unfinished conversations with people who passed away. I feel almost haunted by a couple.

https://en.wikipedia.org/wiki/Zeigarnik_effect

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dpiponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
Dan Piponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
@dpiponi@mathstodon.xyz · Feb 28, 2026

My mastodon stream ranges from complaints that AI is slavery to lectures on how we need to stop using words like "think" to describe them. Chains of transformers have really made people lose their minds.

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dpiponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
Dan Piponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
@dpiponi@mathstodon.xyz · Feb 26, 2026

If you choose not to pay your $100/yr then if you want to write code for a new apple iOS device you need to call technical support to get them to reset your list of allowed devices. It's nuts. But now my flashcard app runs on my phone again.

Anyway, this is one of my favourite flags in my flag deck. Every country (or state or overseas territory) ought to have a flag inspired by Atari Adventure.

(Can you guess whose flag it is?)

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dpiponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
Dan Piponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
@dpiponi@mathstodon.xyz · Feb 25, 2026

We are nothing but the mechanism by which pip upgrades itself.

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dpiponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
Dan Piponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
@dpiponi@mathstodon.xyz · Feb 24, 2026

There are many Britains but one is the setting for folk horror with its wild landscape, isolated villages, stone circles, ruined abbeys and, of course, ancient rituals. And no book did more to cement that image in my mind than the AA Illustrated Guide to Britain, published back in 1974, that I used to pore over as a kid.

So I got a kick out of seeing it sitting prominently on display on the bookshelf in the final scenes of Bone Temple.

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dpiponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
Dan Piponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
@dpiponi@mathstodon.xyz · Feb 23, 2026

So does every maker of zombie movies think "I know, I'll make my movie different, I'll show how the real danger isn't the zombies but the other humans."?

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dpiponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
Dan Piponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
@dpiponi@mathstodon.xyz · Feb 23, 2026

So how many people need to know X before you can say "It is well known that X" in a paper?

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dpiponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
Dan Piponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
@dpiponi@mathstodon.xyz · Feb 22, 2026

I thought I'd read AC Clarke's original article on communication satellites from Wireless World in 1945

https://worldradiohistory.com/UK/Wireless-World/40s/Wireless-World-1945-10.pdf

Many interesting details like the fact that German engineers had suggested that orbiting communication satellites might feasible in "50-100" years.

Anyway, a nice reminder that the article was published in 1945 is:

"In space beyond the atmosphere, a square metre normal to the solar radia tion intercepts 1.35 kW of energy. Solar engines have already been devised for terrestrial use and are an economic proposition in tropical countries. They employ mirrors to concentrate sunlight on the boiler of a low-pressure steam engine. Although this arrangement is not very efficient it could be made much more so in space."

Of course solar concentrators are used today, but I don't think any satellite is steam powered :)

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Thread context 2 posts in path
Parent @mattblaze@federate.social Open
@mattblaze@federate.social
81 Fulham Road ("Michelin House"), London, UK, 2024. All the pixels, each with a terrifying mascot, at https://www.flickr.com/photos/mattblaze/54196628571 #photography
Current reply
dpiponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
Dan Piponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
@dpiponi@mathstodon.xyz · Jan 18, 2026
@mattblaze@federate.social Awesome building on the inside. I ate there once. Notable (to me) for being the first time I ate arugula and I spotted Joanna Lumley at another table.
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Thread context 4 posts in path
Root @mattblaze@federate.social Open
@mattblaze@federate.social
Wind Turbines, near Tracy, CA, 2010. All the pixels, none of which actually cause cancer, at flickr.com/photos/mattblaze/4491948497 #photography
Ancestor 2 @mattblaze@federate.social Open
@mattblaze@federate.social
This was captured near the Tesla substation (no relation to the car company) near Altamont Pass with a DSLR and a 400mm lens, compressing the turbines in a way that made them resemble a histogram. The
Parent @mattblaze@federate.social Open
@mattblaze@federate.social
The scale of these wind farms is beyond what we're equipped to process in day-to-day human experience. They conquer the landscape in ways we can't fully comprehend even when they're in front of us. In
Current reply
dpiponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
Dan Piponi
Dan Piponi
@dpiponi@mathstodon.xyz

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 Group Research 💥 Mass Illusion, Esc, ILM 🎈 Google X, Verily, Google Likes: 🚴 I like to bike 🏃 I like to run 🎛️ my musical tastes lie towards the electronic end of the spectrum 🚀 I like Andor *and* The Mandalorian 📈 I have an OEIS entry https:// oeis.org/A387361

mathstodon.xyz
@dpiponi@mathstodon.xyz · Dec 31, 2025
@mattblaze@federate.social One time I saw these on a hike in the East Bay. I didn't know what I was seeing. A line of articulated entities distorted by the haze along the horizon in the distance, just a few pixels high in my camera, but it was clear they were enormous objects, like a miles wide army of tripods from War of the Worlds. I couldn't come up with any explanation until I got home.
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