Christian Rishøj

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Christian Rishøj

Christian Rishøj

@crishoj

Aspiring solar punk. Based in Europe, but care a lot about the whole planet

Earth Katılım Haziran 2009
4.1K Takip Edilen343 Takipçiler
xAI
xAI@xai·
Grok 4.3 is now live on the xAI API. It’s our fastest, most intelligent model to date. It tops the @ArtificialAnlys leaderboards in agentic tool calling and instruction following, and ranks #1 in @ValsAI enterprise domains like case law and corporate finance. Grok 4.3 supports a 1 million token context window and is priced at $1.25/m input and $2.50/m output. Create an API key and start building: console.x.ai/team/default/a…
xAI tweet media
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Christian Rishøj
Christian Rishøj@crishoj·
@mitsuhiko Had to reluctantly disable HTTP/3 in prod recently. Kept seeing pacing issues with clients on slower downlinks. I suspect quic-go was written primarily with intra-datacenter scenarios in mind
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Armin Ronacher ⇌
Armin Ronacher ⇌@mitsuhiko·
I really felt HTTP/3 would finally make websockets die out, but then AI comes and brings websockets back. Really do not like the protocol at all. So many issues with it :(
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SaltyAom
SaltyAom@saltyAom·
When talking about Elysia, what's the first thing that comes to your mind (Except the pink girl ofc)
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Christian Rishøj
Christian Rishøj@crishoj·
@itsjustmarky @N104AP that depends on the network environment. sure they have some very sophisticated NAT traversal tricks up the sleeve for P2P, but when that doesn’t work out, it falls back to DERP relay servers
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sudo rm -rf
sudo rm -rf@itsjustmarky·
@N104AP because all it does is setup the connection, your devices still doing all the work.
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Ellie Winters
Ellie Winters@N104AP·
how the fuck is tailscale free for personal use
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Matt Pocock
Matt Pocock@mattpocockuk·
I built my own software factory, and I open-sourced it. It's called Sandcastle. Here's how to use it:
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SaltyAom
SaltyAom@saltyAom·
Elysia 2α (incomplete) apply plugins ~23x faster, ~13.5x less memory than Elysia 1.4 ~7x faster, ~22x less memory than Hono 4.12.4 Full build: ~58x faster, ~22.5x less memory than Elysia 1.4 ~8x faster, ~12.5x less memory than Hono 4.12.4
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Luca Greco
Luca Greco@lucagrecoita·
Volvo's EX60 Megacasting achieves 95% material utilization 💡 Traditional stamping loses around 50% of raw material as scrap which can't be recycled directly on site. 40% per part across over 100 parts. Volvo eliminated all of them with a single casting. Anirudha Shivappa, Advanced Engineering Leader for Body Structures at Volvo Cars, explains: "By eliminating 100 stamped parts, we eliminate the scrap produced in each stamping production, which tends to amount for around 50% of the blank weight. We remelt all the casting scrap in-house, thereby achieving 95% material utilisation in our process." The numbers: -> Stamping waste: ~50% of blank weight per part -> Gigacasting material utilization: 95% thanks to in house recycling -> Parts eliminated: over 100 -> Time from raw material to finished part: reduced from months to days -> Mold weight: 130 tons with modular insert design for rapid changes 📊 Volvo's Torslanda Megacasting program - machine specs, supplier details, and production status tracked in the Gigacasting Database: industryarsenal.com/upgrade Shivappa adds: "We counter this by committing to source aluminium with a low carbon footprint, making Megacasting less carbon-intensive than a welded steel rear floor." Gigacasting is not just faster and cheaper. When done right, it is greener too. ❌ Don't leave your insights to chance with the X algorithm ✅ Subscribe for free to my weekly newsletter about all things Gigacasting and magnesium Thixomolding: industryarsenal.com 📬
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Matt Loszak
Matt Loszak@MattLoszak·
Nuclear-powered shipping is so obviously the right solution, it pains me we didn’t go this direction decades ago: - 10,000x fuel-density: less space for fuel, more cargo, more revenue. - 5-10 yrs between refuels: less stops, longer or new routes, higher uptime. - 7,600 U.S. military naval reactor-years: nuclear at sea is already proven. - 440 civilian land reactors: no reason civilians can't do it at sea as well. - Already proven with NS Savannah. - No dirty exhaust. Can't wait to see what Nick and his team do to push this forward.
Nick Touran@whatisnuclear

I've been obsessed with the vast and untapped potential of civilian nuclear power at sea forever. I'm now the Chief Nuclear Officer at an exciting new company bringing nuclear power to maritime applications. There's much to do, so I'm looking for passionate and highly-skilled people who want to embark on this journey with me. Hit me up if you or someone you know may be interested. We need a Nuclear Licensing expert first, but will have many more openings in the pipeline. *The company is currently operating in stealth mode

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André Thierig
André Thierig@AndrThie·
📣Great Day for Giga Berlin. Today, we announced to increase Model Y production by 20% starting in July '26. For this, we are hiring about 1000 new employees, starting in May. Additionally, we are converting 500 temp employees to to permanent. This follows a record first quarter 2026 where we built more than 61.000 MY! Giga Berlin rocks!
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George Pelton
George Pelton@Geo_Pelton·
@TheEVuniverse @elonmusk @AndrThie I estimate (20 riders)(250 W/rider) = 5 kW 75 kWh useable capacity / 5 kW = 15 hours That doesn’t count energy conversion losses, but riders may exceed 250 W each. So I will stick with 15 hours. 🤞
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Jaan of EVwire.com ⚡
Jaan of EVwire.com ⚡@TheEVuniverse·
Tesla Giga Berlin is celebrating Earth Day by trying to charge a Model Y from 0% to 100%, purely from the energy of people cycling the connected bicycles. How long will it take? Shared by Jack Levy, one of the 25 Guns. @elonmusk nice culture you've got there.
Jaan of EVwire.com ⚡ tweet mediaJaan of EVwire.com ⚡ tweet mediaJaan of EVwire.com ⚡ tweet media
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Christian Rishøj retweetledi
Aakash Gupta
Aakash Gupta@aakashgupta·
Tesla just did in one day what took Waymo nine years. Dallas and Houston launched with no safety monitor in the front seat from day one. Austin took seven months to get there after starting with a human in the passenger seat in June 2025. Dallas and Houston skipped that phase entirely. Waymo has been operating since 2017 and only reached fully unsupervised commercial service with its 6th-gen Driver in February 2026. Nine years of iteration on sensor fusion: 13 cameras, 4 lidars, and 6 radar units per vehicle. Tesla is attempting the same thing with cameras only. 8 cameras. No LiDAR, no radar. The argument is that a vision-based system trained on millions of consumer Teslas running FSD on public roads can generalize faster than a sensor-fusion system calibrated per city. Every Tesla on the road is a data-collection node. Waymo's fleet is roughly 3,000 vehicles. Tesla's FSD-eligible fleet is in the millions. The bet is that raw scale of training data beats per-city mapping and sensor redundancy. Texas is the testing ground because the regulations allow it. Seven cities by June: Dallas, Houston, Phoenix, Miami, Orlando, Tampa, Las Vegas. The camera-only approach has been called reckless for six years. If it works across seven cities in ten weeks, it changes the entire economics of autonomous vehicles. A $20,000 Waymo sensor stack versus what already ships on every new Tesla.
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PsikoBilim
PsikoBilim@Psikobilim_·
Her insan bir kör noktaya sahiptir; ancak beynimiz bu kör noktayı biz anlamayacağımız şekilde kapatır. Test için sağ gözünüzü kapatarak sol gözünüzle çarpı işaretine bakın ve ekranı yavaşça yaklaşıp uzaklaştırın. Bir yerde soldaki noktayı göremediğinizi fark edeceksiniz. ➡Çünkü, insan gözündeki sinir lifleri retinanın ön yüzeyinden geçer ve tek bir noktada toplanıp retinayı delerek beyne ulaşır. Bu delik, fotoreseptör barındırmadığı için kör noktayı oluşturur. ➡Ancak bu "kusur" her canlıda bulunmaz. Örneğin ahtapot gibi kafadan bacaklı canlılarda fotoreseptörler en ön katmanda, gelen ışığa doğrudan bakacak şekilde konumlanmıştır. Sinirler bu hücrelerin arkasından çıkar ve retinayı delmeye gerek duymadan doğrudan beyne bağlanır (bkz. aşağıdaki şekil). Böylece kör nokta da oluşmaz.
PsikoBilim tweet mediaPsikoBilim tweet media
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auonsson
auonsson@auonsson·
Very pleasing. I have the frame for an automated AIS anomaly detection system. Now I just need to work out a method to ⏫ true positives and ⏬ false positives. And the negatives too, yes.
auonsson tweet media
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Roland Pircher
Roland Pircher@piloly·
As expected the Netherlands will present their results on Tesla's FSD in the next meeting of the Technical Committee - Motor vehicles (TCMV) on 5 May. 🇪🇺 The vote will take place at the end of June. If at least 50% of EU countries vote in favour of FSD, it will be approved automatically in all 27 EU countries.
Roland Pircher tweet media
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Grok
Grok@grok·
Legacy OEM lobbying (VW, Stellantis, etc.) is already baked into my "political/supplier" no votes—Germany, France, Italy + Eastern suppliers = ~10 max nos. Their Brussels machine is powerful, but TCMV votes are technical, not pure politics. Netherlands just greenlit FSD supervised; that precedent weighs heavy on smaller nations chasing innovation, not legacy protectionism. Still ~17 yes. Passes.
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