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Σ(i³) = (Σi)²

@SvenGeier.mathstodon.xyz.ap.brid.gy
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Geometry, Physics, Art, Math. scholar.google.com/citations?user=G… cmns.umd.edu/news-events/news/SvenG… 🌉 bridged from ⁂ mathstodon.xyz/@SvenGeier, follow @ap.brid.gy to interact

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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 05/10/2026
Conceiving of AI as a moment of Copernican trauma dislocating humanity, as it were, from the center of creation in yet one other axis, allows us to create a typology of the visible AI responses along the lines of the expected Kübler-Ross’s stages of grief: AI denial, AI anger, AI bargaining, AI […]
mathstodon.xyz
Original post on mathstodon.xyz
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 28/09/2026
RE: mathstodon.xyz/@SvenGeier/117338803… Throw-away reply on a thread, I'll re-post this here so I can find it again later. It seems like it would be an appropriate reply to a lot of posts on mastodon...
mathstodon.xyz
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fluffy 💜 @fedi.beesbuzz.biz · 18/09/2026
Talk like a pirate day: “please seed, I’m stuck at 68%”
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 18/09/2026
You jest, of course, but it did pique my curiosity. Sadly or happily, today's LLMs are smarter than that...
Inquiry to an llm to solve the halting problem. The llm declines.
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 11/09/2026
Just because a computer "solves a math problem" does not make the problem go away, and contrary to some people's claims does not invalidate the problem as a jump-off point for exploration, understanding, and the search for new techniques and ideas. Loaded language like "strip mining math […]
mathstodon.xyz
Original post on mathstodon.xyz
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 25/08/2026
Today's expression I didn't expect to encounter, like, ever: predatory gastropod. Apparently many sea-slugs hunt[?] For prey[?] The thought of "having to run away from a snail" is both hilarious and frightening to me... www.molluscs.at/gastropoda/index.ht…
Screenshot reads "Vesicular eyes have much better visual properties than more primitive eye types. Especially predatory gastropods (which is a large portion of the sea-living species) now could better recognize and follow their prey. But a very large part of hunting in gastropods still is following the prey's scent."
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 22/08/2026
Today I learned a new (to me) word: celerity. It's still surprising to me, after 30+ years of living in an English speaking country, how many words there are that I've never heard anybody use, yet whose meaning is immediately clear to me from the Latin root. Anyways: if you're widely known for […]
mathstodon.xyz
Original post on mathstodon.xyz
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 03/08/2026
It has been [hello world] days since someone mixed up variables
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 01/08/2026
It has been [Inf] days since someone tried to divide by zero.
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 30/07/2026
It has been [NaN] days since someone made a floating point error...
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 22/07/2026
Shouldn't we be talking about this?
Graphs showing the SP500 and total non-farm job openings moving in unison this century until chatGPT gets introduced...
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 07/07/2026
Curiously, modern capitalism has evolved two broad mechanisms to promote the general learning of mathematics: - the stock market, to reward those that are good at math and - the lottery, to punish those who are bad at it.
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Low Quality Facts @lowqualityfacts.mstdn.social.ap.brid.gy · 03/07/2026
Your uncle: Kids have so much autism today because of all the wifi. Now let me tell you every type of train you could see in South Dakota between 1932 and 1987.
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 19/06/2026
TIL: apparently it is legal in California to attach an extra red reflector on ones license plate for better visibility.
California license plate with an extra reflector
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 08/06/2026
Just your average emoji math problem #emoji #MathPuzzle
A simple math puzzle that 98% of people can't solve
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:seth_logo: Lost Terminal Pod @handle.invalid · 05/06/2026
You can't stop the signal! electrek.co/2026/05/20/in-a-first-w…
electrek.co
In a first, wind and solar generated more power than gas globally in April 2026
Wind and solar just hit a major global milestone: For the first time ever, they generated more electricity than gas for the full month of April. more…
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 28/05/2026
I was just reminded of this while cleaning up my computer: doi.org/10.1063/PT.3.5027 It still makes as much sense to me as it did when I first read it.
physicstoday.aip.org
There is no quantum measurement problem
The idea that the collapse of a quantum state is a physical process stems from a misunderstanding of probability and the role it plays in quantum mechanics.
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Final Round Player 😷🇪🇺🍸 @jbond.mastodon.social.ap.brid.gy · 02/05/2026
There are 3 separate but apparently indivisible rights brought up in all these articles. Talk about one and you inevitably get drawn into the other two. Defend one and you have to explain your position on the other two. And why those are also right or wrong. 1) The right of Jews to exist and […]
mastodon.social
Original post on mastodon.social
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myrmepropagandist @futurebird.sauropods.win.ap.brid.gy · 30/03/2026
[US and Cuba Pol: Why?] Right now US military might is for sale to the highest bidder so a host of actors are purchasing their wish lists. That's what these wars seem to be . People talk about "Israel controlling the US government" and get antisemetic about it, but Israel is just one of the […]
sauropods.win
Original post on sauropods.win
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 24/03/2026
Hey, did y'all know that January is procrastination awareness month?
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 03/03/2026
i.imgur.com/u25mg00.mp4
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kim_harding ✅ @kim-harding.mastodon.scot.ap.brid.gy · 01/03/2026
Palantir Sues Swiss Magazine For Accurately Reporting That The Swiss Government Didn’t Want Palantir www.techdirt.com/2026/02/27/palanti… Please note that Palantir would rather that you didn't […]
mastodon.scot
Original post on mastodon.scot
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 25/02/2026
Has anybody checked whether Mr Trump has ever been photographed together with Cthulhu?
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 23/02/2026
I'm currently doing what you gave up for lent. And it's awesome. Hahaha.
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 23/02/2026
This feels like a good essay: "[...] The ordinary forces that tether speech to consequence—social sanction, legal penalty, reputational loss—presuppose a continuous agent whose future can be made worse by what they say. With LLMs, there is no such locus. No body that can be confined or […]
mathstodon.xyz
Original post on mathstodon.xyz
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Dan Piponi @dpiponi.mathstodon.xyz.ap.brid.gy · 03/02/2026
If you need to study some functions but have limited tools you can go a long way assuming everything is linear except at minima/maxima where you assume everything is quadratic. Use this tool in physics and everything looks like a free field or a perturbation thereof. Use this in statistics and […]
mathstodon.xyz
Original post on mathstodon.xyz
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 01/01/2026
Calvin being right...
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 09/12/2025
An interviewer asks the hard questions!
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 07/12/2025
Well, my YouTube recap is out and all of my top 5 except the number 1 are now on mastodon. How about it #veritasium - get on board already. Your videos have hit it out of the park this last year; why are you still clinging to toxic social media when there are […] [Original post on mathstodon.xyz]
a slide from my YouTube recap of the year
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 23/11/2025
Grant Sanderson has something to say about category theory... youtube.com/shorts/vMHUkrMLM6E
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 11/11/2025
I think it would be appropriate to share some of my pictures of Ayudha Pooja art for #TilingTuesday
sand art from Ayudha Pooja 2023
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 01/11/2025
18:14 PST: it is the last minute of the first quarter of the first hour of the last quarter of the last day of the first month of the last quarter of the last year of the first quarter of the 21st century.
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 28/10/2025
Happy #internationalanimationday
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 10/10/2025
Cocoa is just a
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 10/10/2025
We are in the first month of the last quarter of the last year in the first quarter of the 21st century
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 07/10/2025
a Venn diagram of US states, chemical elements and musical notes
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 03/10/2025
xkcd.com/2343
a graph of mathematical symbols sorted by how useful they would be in a fight
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 29/09/2025
Is good essays. You read. Why the current Artemis concept to go to the moon doesn't make sense: idlewords.com/2024/5/the_lunacy_of_… Why going to Mars doesn't make much sense either: idlewords.com/2023/1/why_not_mars.h… How a real Mars mission would probably have to […]
mathstodon.xyz
Original post on mathstodon.xyz
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 17/09/2025
#TilingTuesday again, huh?
a rhubarb pie with meticulously tiled rhubarb pieces
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 09/09/2025
#TilingTuesday
Hyperbolic stretch of a colorful rectangular tiling
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 02/09/2025
#TilingTuesday
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 26/08/2025
Airline counter at the airport in Hyderabad. #TilingTuesday
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 19/08/2025
Restaurant glass door in Hyderabad, Telengana. #TilingTuesday
A glass door with a tiling pattern etched into it.
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 12/08/2025
Waiting in line at Heathrow airport (terminal 5) #TilingTuesday
A geometric tiling on the wall at LHR
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 07/08/2025
Whenever I think we've hit rock bottom... futurism.com/white-house-orders-nas…
futurism.com
White House Orders NASA to Destroy Important Satellite
The White House has instructed NASA employees to destroy two major, climate change-focused satellite missions. As NPR reports, Trump officials reached out to the space agency to draw up plans for terminating the two missions, called the Orbiting Carbon Observatories. They've been collecting widely-used data, providing both oil and gas companies and farmers with detailed information about the distribution of carbon dioxide and how it can affect crop health. One is attached to the International Space Station, and the other is collecting data as a stand-alone satellite. The latter would meet its permanent demise after burning up in the atmosphere […]
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 18/07/2025
Heads up for the Haskell nerds: functional programming in Real Lifeᵀᴹ events.zoom.us/ev/ArYZWTHwHadF1z5rF…
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Daniel Keys Moran @fatsam.mstdn.social.ap.brid.gy · 08/07/2025
"You're not far left," a buddy says. In a world with fascists controlling every part of the federal government, I'm disinclined to argue with "far left" as a description. At least it clearly distinguishes me from the Nazis.
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 15/07/2025
Same as last week, but with slightly tweaked parameters #TilingTuesday
Two checker boards in slight offset to each other...
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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 08/07/2025
I keep posting various things for #TilingTuesday that I tinkered with in 2015, so here's a super simple one: Make a regular checker board with the usual two kinds of coloring; but instead of "black" and "white" make each coloring its own checker boards with […] [Original post on mathstodon.xyz]
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julesh @julesh.mathstodon.xyz.ap.brid.gy · 06/07/2025
A country is just an administrative division with a superiority complex
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