Maybe you have recently become aware of the AI safety debate and the arguments swirling around it. If you want to understand them, you need to understand a couple things that almost everyone gets wrong: There are TWO distinct classes of AI dangers, and it's VERY important to think about them separately, and not let one confuse you about the other. Many many people (including many quite intelligent, clear-thinking people) do not effectively understand the fundamental differences between these two classes of dangers. The first one has to do with the theory that an AI far superior to human intelligence (Artificial SuperIntelligence, or ASI) will inevitably wipe out the human race. The second one has to do with the idea that powerful AI will result in very harmful things happening to many human beings, possibly all human beings. Those two sound VERY similar, don't they? They are DIFFERENT. Understanding how they are different is crucial if you want to think about or contribute usefully to any conversation about AI safety or AI harm. You might feel like you are Making Very Good Points or Asking Incisive Questions, but if you aren't clear on the differences between the two, you aren't. So, I'm going to tell you what the difference is so that you can talk more usefully. The first one concerns itself with a very specific thing, which is ASI (Artificial Superintelligence) that is more intelligent than any human being. When I say that, I am not referring to a thing like how Einstein is smarter than you, we are talking more about something like how a human being is more intelligent than any mouse. In our regular lives, we meet other people who we can tell are smarter than us, vs some who are less smart. The line is fuzzy, because intelligence has a lot of dimensions. I'm better at a "rotating shapes" kind of intelligence than my wife, and she is better at "words-making" kind of intelligence than I am. But every human is better in almost every dimension of intelligence than every single mouse. That's the level we're talking about: an artificial superintelligence - made up of a computer or a network of computers - that is more intelligent than any human. And more intelligent by a long shot, by a wide margin, in an indisputable way like how humans are above mice. That is the first thing. The theory says that if you have an AI that is vastly smarter than all humans - in the way that a human is smarter than mice - that superintelligent AI will inevitably, eventually, sooner or later, wipe out every human on the planet. We will refer to this as "existential risk." The common follow-up question "well, how exactly is it going to do that?" is NOT the important question, and one of the most important elements of understanding this theory is first getting why that particular question is not important. A couple analogies: Analogy 1: You are playing chess against a grandmaster. My theory predicts the grandmaster is going to beat you. You can ask "Well, how exactly is he going to do that?" I don't know, because I'm not a grandmaster, I just know that a chess grandmaster is almost always going to beat a normal player like you. And I'd be right. So the question "how is he going to do that" is not important, and doesn't affect the final outcome. He's going to figure out a way because he's way better than you. Analogy 2: Humans are smarter than all other animals, comprehensively, by a wide margin. We have driven numerous species to extinction, not because we hated them or hunted them. Many of them have died out without most humans even ever thinking about them. All we did was expand our civilization, use up resources, encroach on habitats, and pretty soon the resources needed by those species went away and they died out. We figured out a way to get what we wanted because we're way smarter than them, and often we didn't even notice they died as a result. A lesser animal asking, "how are the humans going to wipe us out?" is not asking a relevant question. We don't know, but we do know that any time humans and lesser species compete for any kind of resources, the humans will win. The fact that we know who is going to win beforehand - and that it is due to the vastly different levels of intelligence - is the key concept here. A vastly more intelligent AI is likely to care about things that are incomprehensible to us, the way animals can't understand human goals. It's going to need resources to pursue those goals and it's going to be far more effective at gaining control of them and excluding us from them - in the same way that we are far more effective than other lower species. A much more intelligent AI will not care about our interests, it will care about its interests, and to whatever small degree we happen to escape total annihilation from losing access to all our resources, any remaining humans will likely be enslaved into a system that serves the AI's own purposes. That is the first thing. (Remember how I said at the beginning of this post that there was a first thing, and then a second thing?) The first thing is the most difficult to understand, because you have to extrapolate how a vastly superior intelligence would act, and you can only use analogies like "how do humans treat lesser creatures," and the analogies are messy. But now let's move on to the second thing. The second thing is "everything else you've ever heard that AI might do that's harmful." That's a little inaccurate. It's actually "everything else you've ever heard that humans might use AI to do that's harmful." This is the critical difference. The first one talks about the inevitable outcome of what happens when two vastly different levels of intelligence collide, e.g. ASI vs humans, or human vs mice. The second one has to do with what happens when humans possess AI as a powerful tool. This second thing is much easier to understand, because we have many more concrete notions: Like: - the military uses AI to make hyper-efficient killer drones and missiles - your capitalist overlords use AI to replace you and everyone loses their jobs - authoritarian government uses AI to surveil everybody and control the entire population - hackers use AI to break into secure networks and hold companies and governments hostage - students use AI to cheat on homework and show up to college knowing nothing - AI slop saturates the internet and makes it impossible for artists and writers to make a living - terrorists use AI to make biological or nuclear weapons or even things like - the military hands control to an AI and it misinterprets something and launches nuclear attacks and kills millions All of those sound pretty familiar, right? Yeah, you've heard them before. We call this second thing "risks from misuse." These problems are not the first class of problem! This second class of problems exists while AI is a tool that can be controlled by humans, and humans use it to do evil or careless things to each other. The problems may sound exotic or dystopian or novel, but they are fundamentally problems having to do with flawed human nature. Given a powerful tool, some humans will likely use it to control or otherwise harm others. This is a very familiar problem. I am not condemning or condoning this. I'm just describing it. That is a fundamentally different danger from the first thing, which is that when a human is far superior to a mouse, the mouse is likely to come to harm because the human cares about doing human things, and the mouse is not gonna make it once the humans get going. ===== Hopefully from the above, you have understood the difference between the first thing and the second thing. I will list them again - see if you now understand how they are different: The first one has to do with the idea that an AI superior to human intelligence (Artificial SuperIntelligence, or ASI) will inevitably wipe out the human race. The second one has to do with the idea that powerful AI will result in very harmful things happening to many human beings, possibly all human beings. Can you tell how they are different now? If not, re-read the stuff from earlier until you understand. We call the first one "existential risk" and we call the second one "risks from misuse." Once you understand, here is the CRUX of the problem: SOLUTIONS TO THE SECOND THING DO NOT HAVE ANYTHING TO DO WITH SOLUTIONS TO THE FIRST THING. In fact, it's worse: Solutions to the second thing (misuse) look roughly like "give powerful AI to as many people as you can, so they can fight the other people using powerful AI." But the general solution to the first one (existential risk) is basically "don't let anyone have powerful AI, no one can control super-intelligent AI." Throughout history, harms from technological misuse typically arise because a small group has control of it and can use it to dominate or harm others. Once everyone has it, things tend to stabilize: you can hurt me, I can hurt you, maybe we test each other (ouch 💥), and then we agree not to hurt each other. But the first one (existential risk) pretty much just arises if anyone (good or bad!) creates a superintelligence. Because they aren't going to be able to control it, the superintelligence will decide it has other priorities, and then we will be at great risk of being wiped out. And the solutions that generally work to solve problems like the second thing are EXACTLY THE OPPOSITE of the ones likely to solve the first thing. THIS is why lots of arguments about "AI risk" or "AI safety" go nowhere. Because someone will be thinking about the risk from the first thing, and another person will be thinking about the risk from the second thing. Both are plausible risks but fundamentally they arise from different things - and so the solutions are not just "bad" or "flawed" - they are likely to be very nearly exact opposites.

Trained a humanoid entirely in a 3D scan of the office. Zero real-world fine-tuning. It just walked in and worked. RL needs hundreds of thousands of attempts, and real robots can't afford to crash. A misjudged gap or a glass door collision breaks hardware and costs hours resetting. So you train in a sim. But sim policies usually train on randomized, untextured geometry; depth is easy to fake. The robot learns structure, not the real world: no materials, no lighting, no idea what anything actually is. RGB cameras carry all of that but training RGB policies in generic fake worlds won’t generalize to the real world. @NianticSpatial Scaniverse reconstructs your scan of the real deployment site. One 360° camera walkthrough → photorealistic 3D Gaussian splat at metric scale → collision mesh pulled from the same reconstruction, so vision and physics match exactly. Drops straight into NVIDIA Isaac Sim/Lab, no manual conversion. @FlexionAI simulation-first approach then seamlessly enables the training of RGB-only nav policies inside that reconstruction. With added domain randomization + large image encoders for robustness, this deploys straight to hardware. No real-world fine-tuning. Deployment: months of on-site adaptation → days. Tune into the NVIDIA livestream on 12 August to hear how these companies are closing the sim2real gap: addevent.com/event/gvb8rkdrc… @NVIDIARobotics ~~ ♻️ Join the weekly robotics newsletter, and never miss any news → ziegler.substack.com

Excited to have @nikitabier join us as cohost of @twistartups

Another quick hack with Opus 5... fully ported to @threejs and added some other "battle of the hoth" elements... battle-of-the-hoth-simulator… os fork: github.com/csanz/battle-of-t…

just having fun... The Empire Strikes Powder: snowflow-demo.vercel.app/ my fork: github.com/csanz/snowflow_de… cc @threejs

Really impressive work by the creator of this demo. It's amazing what you can build with @threejs and a web browser with just a few prompts.... This is the same open source version, but adding sound with @elevenlabs completely transforms the experience. Amazing how much of a difference audio makes... try it out: snowflow-demo.vercel.app/ Source: teddit.net/r/ClaudeAI/commen… cc @vercel

Worth reading Superintelligence by Bostrom. We need to be super careful with AI. Potentially more dangerous than nukes.

gm, excited to share our latest web collaboration with the incredible team at @USAvionix check it out: usavionix.com

We launched a new site to share more about what we’re building at USAvionix: usavionix.com/ Today’s aerial systems don’t scale. We’re building an agentic aerial network with onboard intelligence to search, interpret, and coordinate across large areas with minimal human involvement. The goal: persistent coverage that is economically practical, and faster response when an incident occurs. Thank you to the USAvionix team for bringing it to life.

Someone on Reddit just built a AAA-quality snow simulation in their browser. Using Claude Opus 5. Millions of snow particles. A character in a robe with cloth physics. Five water-based spells that carve the terrain. A snow surfing system with a wake that throws spray into sunlight. Every footstep displaces snow. Trails form berms at the edges. Trenches slowly refill over time. Spells leave permanent craters. The entire thing runs in one browser tab. WebGPU. No game engine. No 3D modeling software. Just code. He wrote one detailed prompt. Opus 5 planned the architecture, wrote the shaders, built the physics, iterated from screenshots, and documented every decision. 9 hours. ~4 million tokens. You can open it right now and walk around in it. This isn't a demo. This is the kind of thing a small studio would spend months building.