Tchekodiak

@DeterreMarc @brivael Deux caméras filmant le même point focal = évaluation de la distance. geeksforgeeks.org/computer-visio… par exemple... C'est un truc 'vieux' comme le monde. stereosite.com/collecting/the…

@brivael Je ne suis pas un spécialiste du tout. Je comprends le choix de la simplicité vs complexité & $. Mais je pensais que LIDAR amenait une précision de distance. Tout n'a pas d'yeux certain dispose d'un sonar 🐬 Le choix de E Musk était top ds le contexte de l'époque, l'est il tjrs?

Aujourd'hui grosse discussion avec mes ingés (chez Argil) sur pourquoi Elon a viré le LIDAR de ses voitures autonomes. Choix radical, moqué pendant des années, et comme d'hab il avait raison depuis le début. Le LIDAR c'est un laser qui balaye l'environnement et crache un nuage de points 3D. Sur le papier tu obtiens la géométrie exacte du monde. Dans la vraie vie c'est une verrue technologique collée sur le toit parce qu'on sait pas faire mieux avec la vision seule. Problème numéro un : ça rajoute une modalité dans le training du modèle. Ton réseau doit apprendre à fusionner vision + lidar + radar + ultrasons. Chaque capteur en plus c'est une source de désaccord à arbitrer, pas une source d'info supplémentaire. Sensor fusion artisanale = dette technique permanente. Problème numéro deux, la bitter lesson de Rich Sutton : scaler le compute sur une seule modalité bat systématiquement les architectures bricolées à la main. Tesla a dropé le radar, puis les ultrasons, est passé full end-to-end vision. Leur courbe sur les edge cases s'est accélérée APRÈS, pas avant. Waymo fait l'inverse et reste stuck en ops géofencée. Problème numéro trois, le plus fondamental : le LIDAR voit la géométrie, pas la sémantique. Il sait qu'il y a un truc, pas ce que c'est ni ce que ça va faire. Les derniers 9 de fiabilité sont des problèmes de cognition, pas de perception brute. Un capteur de plus résout rien, il ajoute du bruit. Sébastien Loeb balance une 208 T16 à 180 dans un chemin boueux corse sous la pluie avec zéro LIDAR. Deux yeux, un cerveau. L'évolution a donné des yeux aux prédateurs pendant 500 millions d'années, pas des lasers. Il y a une raison. Le LIDAR c'est l'équivalent du marxisme appliqué à l'économie. Une solution planifiée, centralisée, qui prétend modéliser explicitement ce qui doit émerger d'un système distribué et adaptatif. Tu remplaces l'intelligence par de la mesure, la compréhension par de la donnée, l'émergence par le contrôle. Ça rassure les ingénieurs qui veulent tout spécifier en amont, exactement comme la planif rassurait les économistes soviétiques. Et ça échoue pour les mêmes raisons : la réalité est trop riche pour être capturée par un capteur, comme elle est trop riche pour être capturée par un plan quinquennal. La vraie intelligence, celle de Hayek comme celle de Tesla, c'est de faire confiance à un système qui apprend de l'expérience plutôt que de tout pré-encoder. L'élégance d'une solution c'est son rapport signal sur complexité. Le LIDAR explose le dénominateur. Défendre le LIDAR en 2026 c'est préférer empiler des hacks plutôt que résoudre le vrai problème. C'est de la feignasserie intellectuelle maquillée en rigueur d'ingénieur. Les mêmes gens qui défendaient les systèmes experts en 2012 contre le deep learning. Ils finiront pareil. Never bet against end-to-end. Never bet against la simplicité. Never bet against Elon.

@tom669559468924 @memcculloch And countless dark matter detectors too... Does it work both side? 🤡

I can feel the mainstream pain. "QI explains all the new anomalies, but, but,.. it violates a principle!" A principle is less solid than an anomaly which is a direct signpost from nature, especially when you have 50+ of them. QI is inevitable.

@memcculloch I hope QI won't take that long. :) Haha

I admire John Philoponus, a Byzantine scientist & the first to doubt that the default state of matter was rest. He proposed the default state was uniform motion: inertia. His works were cancelled by the early church, saved by the Arabs & used 1000 yrs later by Galileo #Big

@DWDInvesting @DrAaronThomason And no diarrhea from yet to be seen dark matter after 50 years of deep digging with billions of funding? Dark matter theory is exactly your car that runs on water actually...

@DrAaronThomason The only thing missing is evidence and replication studies -- who knew? We already had free energy with the car that runs on water. Search: "car that runs on water"and see how much sewer water you get for results. (So sick of this pseudoscience diarrhea.)

So I found Mike's theory way back in 2012 when I wondered who was studying "inertia". To me this mysterious force has to have an explanation. Mike's QI theory does that and more. This guy is brilliant. We are just at the start of new physics.

@ladybirdbrowser @grok, what's the general response feeling about this rust move for Ladybird?

Ladybird adopts Rust, with help from AI ladybird.org/posts/adopting…

@grok , @xai Feature request: Let logged-in users prompt Grok in chat to generate + submit edit suggestions directly to Grokipedia (preview → confirm → send). Reduces friction vs manual copy-paste on grokipedia.com

@keith_brodie Nice paper that bridges McCulloch's theory to more mainstream ones. Good job!

New paper: McCulloch's Quantized Inertia from Jacobson's thermodynamic spacetime (1995). No dark matter, no free parameters — just horizon thermodynamics in a finite universe. m_i = m_g[1 - (a₀/a)²], with a₀ = cH₀ from geometry alone. github.com/KeithBrodie/ja… @memcculloch @skdh

@IvoneFitzGerald @SAAA_T_ @memcculloch Micron sized feature can be made with alumina pores grown on a pure aluminum sheet. You get a conductive layer with integrated dielectric. Add an ITO (or others) glass for the other conductive plate. Current & UV light (thru ITO glass) to help with electrophotoemission.

@SAAA_T_ @memcculloch I believe that we should return to the EMDrive and give it another go. The current path, miniaturised capacitors, of which there’s a satellite, requires micron sized nodes to demonstrate strong thrust . TSMC and Samsung are not there yet.

Almost all of my friends are on twitter/X. Being shy I find it easier to talk online this way. That's why when my university asked me to stop twittering I said no & eventually lost my job. If the government tries to ban it, it'll be annoying but I will continue via VPN.

@Jolinar_cz @memcculloch Grokipedia edit mode works really great. At least, you're 'moderated' by a balanced algorithm and not some human biased gatekeeper, defender of the only truth as seen on another 'pedia' system...

@memcculloch I have created QI page on Grokipedia (well, Grok did, of course) and made first edit. Now it's your turn to read through and edit what needs to be edited ;-) grokipedia.com/page/quantized…

Merry Christmas! patreon.com/posts/thoughts…

Benchmarked power consumption at the plug for my little 19" 1U EdgeCluster based on ASRock 8840U 4x4 Industrial boards. Full throttle (cpu boost off) on all 4 boards takes only 140W. That's 35W per board, 4,4W per core. What does Grok think about it?grok.com/share/c2hhcmQt…

My small cluster project is finally running. Four 4x4 8840U ASRock single board computers running side by side in a 19" 1U enclosure with only 255mm depth. 384GB ram, 8TB NVMe storage. Ready to get embedded in my network cabinet. It runs a clusterized Proxmox. Do you want one?

@PeterSweden7 I asked grok to do some homework on the subject. Preliminary result is puzzling. CDU 0, SPD 0, Grüne 0, FDP 1, Die Link 0, Others (minor party) 5. Political parties *usually* issue public death notice when a candidate dies. Wrench in the works?

BREAKING: 4 candidates for the right-wing AfD party have died "suddenly and unexpected" within a short time of each other. This happened just before elections in Germany largest state North-Rhine Westphalia.

@PeterSweden7 Scientific method: list all election candidates for the next German election. Record death events over this population. Make pools by party. Compare death rates between pools. Result should be flat. If AfD pool shows a significant bump, there is a problem.

@memcculloch @l4m4re Just finding that part funny as you also stumbled on that at some point afair...

@l4m4re The thing is I get several requests like this a day & I don't have time to look into them all. I do read peer reviewed work because then the person has convinced someone else.

Alien Pilot 1: "Let's go down & refuel in the Earth's Pacific ocean." Alien Pilot 2: "No problem. The amazing thing about humans is that they ignore data that doesn't fit their model. Even if they see us, they won't believe it."

@memcculloch @l4m4re "It is important to note that the div operator involves an integral over the surface of a volume, and therefore works on a volume rather than a surface, while the curl operator involves a line integral over a closed curve, and therefore works on a surface rather than a volume."

@danlaynd @MichaelButtonX 'Tons of it'? No. Definitly no. Find a steel/copper/tin/brass furniture in your home that is at least *100* years old. If found, add 100 years and check again. Most of the old junk is simply recycled. And humanity has been doing that since the beginning. Also, how deep do we dig?

@MichaelButtonX Yes we would see evidence and tons of it. Semiconductors do not rot away nor fall apart. That's the beauty of the rock. Plus all diamonds both natural and crafted will look exactly the same 200k years later as they look today. Thus, no your argument is faulty.

@nextbigfuture You can also follow altitude there: orbit.ing-now.com/satellite/6323…

The Second IVO Quantum drive that has been launched to orbit will start tests. If it raises the altitude of the satellite 63235 as measured by the SMA (Semi Major Axis) then this will be evidence that a worldchanging propulsion system works. We can follow the tests with Norad radar tracking of the satellite. Currently at 511.2 kilometers. We would want to see it rise. The satellite has been slowly falling for months. @DJSnM @universetoday @RandyWKirk1

@eedobarganes @memcculloch That we're not yet at First Contact (Star Trek movie). 🤡

@memcculloch meaning ?

Just a note that the IVO #QI-based quantum thruster has still not apparently been turned on. It is showing some odd recent eccentricities though (purple curve):

@memcculloch Would this work? An ITO glass (or other transparent thin conductive metallic layer), a pure aluminum sheet with 1µm alumine layer (dielectric) with honeycomb like structure. Apply voltage + exterme UV to ease electron tunneling without breaking dielectric.

#DailyEmpirical According to QI, a spark across a gap between a thick & thin metal plate will excite short Unruh waves, damped more by the thick plate, causing a force that way. Such a force has been glimpsed (above ion wind) & unexplained since the 1920s. QI predicts the thrust.

@memcculloch Reword with more dark (a)matterism lingo. Define a new dark matter particule that affects inertia. They will get the words they are used to read. :)

My letter showing binary planets have a minimum acceleration as predicted by QI has been rejected by RNAAS. They "don't discuss novel theories", but that's not said on the website, they say "works in progress" so... It's also a nice observation of a new pattern. I've emailed...