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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.

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 · 06/07/2026

@lowqualityfacts Are we just talking about the human themselves or does the parasite count?

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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 25/06/2026

@ifixcoinops Or we play it pragmatically and MAKE a trillion dollars. There's an old saying "never argue with a fool, make money off of them". Why not enjoy an annualized ROI in excess of ten thousand percent?

Google finance AI showing the money a hypothetical trader could've made in a week by betting against the SpaceX IPO.

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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 · 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 · 11/11/2025

I think it would be appropriate to share some of my pictures of Ayudha Pooja art for #TilingTuesday

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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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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 01/07/2025

For some reason some people liked that last picture even though it's really not a tiling and shouldn't be tagged for #TilingTuesday , Is there a common tag for #GenericFunPictureMadeWithMathThatIsNotATiling ?

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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 17/05/2025

Hey, @johncarlosbaez : Rob Miles is trying to put you out of a job...

Rob Miles video has a brief snipppet about "How to not be a Crackpot"...

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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 13/05/2025

Done in multiple layers, but not layers that are recognizably stacked on top of each other... #TilingTuesday

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Σ(i³) = (Σi)² @svengeier.mathstodon.xyz.ap.brid.gy · 03/04/2025

I thought it was kind-of reminiscent of the Voyager golden record pulsar map. However there's no real 1:1 correspondence. Though I do know that the Voyager maps are pretty badly wrong (as far as we know today) and maybe Newcastle's pavament is an attempt to […] [Original post on mathstodon.xyz]

An image comparing the Newcastle pavement to the pulsar map on Voyager's golden record

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