LessWrong (Curated & Popular)

https://www.lesswrong.com/posts/fFY2HeC9i2Tx8FEnK/my-resentful-story-of-becoming-a-medical-miracleThis is a linkpost for https://acesounderglass.com/2022/10/13/my-resentful-story-of-becoming-a-medical-miracle/You know those health books with “miracle cure” in the subtitle? The ones that always start with a preface about a particular patient who was completely hopeless until they tried the supplement/meditation technique/healing crystal that the book is based on? These people always start broken and miserable, unable to work or enjoy life, perhaps even suicidal from the sheer hopelessness of getting their body to stop betraying them. They’ve spent decades trying everything and nothing has worked until their friend makes them see the book’s author, who prescribes the same thing they always prescribe, and the patient immediately stands up and starts dancing because their problem is entirely fixed (more conservative books will say it took two sessions). You know how those are completely unbelievable, because anything that worked that well would go mainstream, so basically the book is starting you off with a shit test to make sure you don’t challenge its bullshit later?Well 5 months ago I became one of those miraculous stories, except worse, because my doctor didn’t even do it on purpose. This finalized some already fermenting changes in how I view medical interventions and research. Namely: sometimes knowledge doesn’t work and then you have to optimize for luck.I assure you I’m at least as unhappy about this as you are. 

https://www.lesswrong.com/posts/CKgPFHoWFkviYz7CB/the-redaction-machineOn the 3rd of October 2351 a machine flared to life. Huge energies coursed into it via cables, only to leave moments later as heat dumped unwanted into its radiators. With an enormous puff the machine unleashed sixty years of human metabolic entropy into superheated steam.In the heart of the machine was Jane, a person of the early 21st century.From her perspective there was no transition. One moment she had been in the year 2021, sat beneath a tree in a park. Reading a detective novel.Then the book was gone, and the tree. Also the park. Even the year.She found herself laid in a bathtub, immersed in sickly fatty fluids. She was naked and cold.

https://www.lesswrong.com/posts/pRkFkzwKZ2zfa3R6H/without-specific-countermeasures-the-easiest-path-toCrossposted from the AI Alignment Forum. May contain more technical jargon than usual.I think that in the coming 15-30 years, the world could plausibly develop “transformative AI”: AI powerful enough to bring us into a new, qualitatively different future, via an explosion in science and technology R&D. This sort of AI could be sufficient to make this the most important century of all time for humanity.The most straightforward vision for developing transformative AI that I can imagine working with very little innovation in techniques is what I’ll call human feedback[1] on diverse tasks (HFDT):Train a powerful neural network model to simultaneously master a wide variety of challenging tasks (e.g. software development, novel-writing, game play, forecasting, etc) by using reinforcement learning on human feedback and other metrics of performance.HFDT is not the only approach to developing transformative AI,[2] and it may not work at all.[3] But I take it very seriously, and I’m aware of increasingly many executives and ML researchers at AI companies who believe something within this space could work soon. Unfortunately, I think that if AI companies race forward training increasingly powerful models using HFDT, this is likely to eventually lead to a full-blown AI takeover (i.e. a possibly violent uprising or coup by AI systems). I don’t think this is a certainty, but it looks like the best-guess default absent specific efforts to prevent it.

https://www.lesswrong.com/posts/iCfdcxiyr2Kj8m8mT/the-shard-theory-of-human-valuesTL;DR: We propose a theory of human value formation. According to this theory, the reward system shapes human values in a relatively straightforward manner. Human values are not e.g. an incredibly complicated, genetically hard-coded set of drives, but rather sets of contextually activated heuristics which were shaped by and bootstrapped from crude, genetically hard-coded reward circuitry. 

https://www.lesswrong.com/posts/AfH2oPHCApdKicM4m/two-year-update-on-my-personal-ai-timelines#fnref-fwwPpQFdWM6hJqwuY-12Crossposted from the AI Alignment Forum. May contain more technical jargon than usual.I worked on my draft report on biological anchors for forecasting AI timelines mainly between ~May 2019 (three months after the release of GPT-2) and ~Jul 2020 (a month after the release of GPT-3), and posted it on LessWrong in Sep 2020 after an internal review process. At the time, my bottom line estimates from the bio anchors modeling exercise were:[1]Roughly ~15% probability of transformative AI by 2036[2] (16 years from posting the report; 14 years from now).A median of ~2050 for transformative AI (30 years from posting, 28 years from now).These were roughly close to my all-things-considered probabilities at the time, as other salient analytical frames on timelines didn’t do much to push back on this view. (Though my subjective probabilities bounced around quite a lot around these values and if you’d asked me on different days and with different framings I’d have given meaningfully different numbers.)It’s been about two years since the bulk of the work on that report was completed, during which I’ve mainly been thinking about AI. In that time it feels like very short timelines have become a lot more common and salient on LessWrong and in at least some parts of the ML community.My personal timelines have also gotten considerably shorter over this period. I now expect something roughly like this:

https://www.lesswrong.com/posts/9kNxhKWvixtKW5anS/you-are-not-measuring-what-you-think-you-are-measuringEight years ago, I worked as a data scientist at a startup, and we wanted to optimize our sign-up flow. We A/B tested lots of different changes, and occasionally found something which would boost (or reduce) click-through rates by 10% or so.Then one week I was puzzling over a discrepancy in the variance of our daily signups. Eventually I scraped some data from the log files, and found that during traffic spikes, our server latency shot up to multiple seconds. The effect on signups during these spikes was massive: even just 300 ms was enough that click-through dropped by 30%, and when latency went up to seconds the click-through rates dropped by over 80%. And this happened multiple times per day. Latency was far and away the most important factor which determined our click-through rates. [1]Going back through some of our earlier experiments, it was clear in hindsight that some of our biggest effect-sizes actually came from changing latency - for instance, if we changed the order of two screens, then there’d be an extra screen before the user hit the one with high latency, so the latency would be better hidden. Our original interpretations of those experiments - e.g. that the user cared more about the content of one screen than another - were totally wrong. It was also clear in hindsight that our statistics on all the earlier experiments were bunk - we’d assumed that every user’s click-through was statistically independent, when in fact they were highly correlated, so many of the results which we thought were significant were in fact basically noise.

https://www.lesswrong.com/posts/WNpvK67MjREgvB8u8/do-bamboos-set-themselves-on-fireCross-posted from Telescopic Turnip.As we all know, the best place to have a kung-fu fight is a bamboo forest. There are just so many opportunities to grab pieces of bamboos and manufacture improvised weapons, use them to catapult yourself in the air and other basic techniques any debutant martial artist ought to know. A lesser-known fact is that bamboo-forest fights occur even when the cameras of Hong-Kong filmmakers are not present. They may even happen without the presence of humans at all. The forest itself is the kung-fu fight.It's often argued that humans are the worst species on Earth, because of our limitless potential for violence and mutual destruction. If that's the case, bamboos are second. Bamboos are sick. The evolution of bamboos is the result of multiple layers of shear brutality, with two imbricated levels of war, culminating in an apocalypse of combustive annihilation. At least, according to some hypotheses.

https://www.lesswrong.com/posts/J3wemDGtsy5gzD3xa/toni-kurz-and-the-insanity-of-climbing-mountainsContent warning: deathI've been on a YouTube binge lately. My current favorite genre is disaster stories about mountain climbing. The death statistics for some of these mountains, especially ones in the Himalayas are truly insane.To give an example, let me tell you about a mountain most people have never heard of: Nanga Parbat. It's a 8,126 meter "wall of ice and rock", sporting the tallest mountain face and the fastest change in elevation in the entire world: the Rupal Face.I've posted a picture above, but these really don't do justice to just how gigantic this wall is. This single face is as tall as the largest mountain in the Alps. It is the size of ten empire state buildings stacked on top of one another. If you could somehow walk straight up starting from the bottom, it would take you an entire HOUR to reach the summit.31 people died trying to climb this mountain before its first successful ascent. Imagine being climber number 32 and thinking "Well I know no one has ascended this mountain and thirty one people have died trying, but why not, let's give it a go!"The stories of deaths on these mountains (and even much shorter peaks in the Alps or in North America) sound like they are out of a novel. Stories of one mountain in particular have stuck with me: the first attempts to climb tallest mountain face in the alps: The Eigerwand.The Eigerwand: First AttemptThe Eigerwand is the North face of a 14,000 foot peak named "The Eiger". After three generations of Europeans had conquered every peak in the Alps, few great challenges remained in the area. The Eigerwand was one of these: widely considered to be the greatest unclimbed route in the Alps.The peak had already been reached in the 1850s, during the golden age of Alpine exploration. But the north face of the mountain remained unclimbed.Many things can make a climb challenging: steep slopes, avalanches, long ascents, no easy resting spots and more. The Eigerwand had all of those, but one hazard in particular stood out: loose rock and snow.In the summer months (usually considered the best time for climbing), the mountain crumbles. Fist-sized boulders routinely tumble down the mountain. Huge avalanaches sweep down its 70-degree slopes at incredible speed. And the huge, concave face is perpetually in shadow. It is extremely cold and windy, and the concave face seems to cause local weather patterns that can be completely different from the pass below. The face is deadly.Before 1935, no team had made a serious attempt at the face. But that year, two young German climbers from Bavaria, both extremely experienced but relatively unknown outside the climbing community, decided they would make the first serious attempt.

https://www.lesswrong.com/posts/oyKzz7bvcZMEPaDs6/survey-adviceThings I believe about making surveys, after making some surveys:If you write a question that seems clear, there’s an unbelievably high chance that any given reader will misunderstand it. (Possibly this applies to things that aren’t survey questions also, but that’s a problem for another time.)A better way to find out if your questions are clear is to repeatedly take a single individual person, and sit down with them, and ask them to take your survey while narrating the process: reading the questions aloud, telling you what they think the question is asking, explaining their thought process in answering it. If you do this repeatedly with different people until some are not confused at all, the questions are probably clear.If you ask people very similar questions in different sounding ways, you can get very different answers (possibly related to the above, though that’s not obviously the main thing going on).One specific case of that: for some large class of events, if you ask people how many years until a 10%, 50%, 90% chance of event X occurring, you will get an earlier distribution of times than if you ask the probability that X will happen in 10, 20, 50 years. (I’ve only tried this with AI related things, but my guess is that it at least generalizes to other low-probability-seeming things. Also, if you just ask about 10% on its own, it is consistently different from 10% alongside 50% and 90%.Given the complicated landscape of people’s beliefs about the world and proclivities to say certain things, there is a huge amount of scope for choosing questions to get answers that sound different to listeners (e.g. support a different side in a debate).There is also scope for helping people think through a thing in a way that they would endorse, e.g. by asking a sequence of questions. This can also change what the answer sounds like, but seems ethical to me, whereas applications of 5 seem generally suss.Often your respondent knows thing P and you want to know Q, and it is possible to infer something about Q from P. You then have a choice about which point in this inference chain to ask the person about. It seems helpful to notice this choice. For instance, if AI researchers know most about what AI research looks like, and you want to know whether human civilization will be imminently destroyed by renegade AI systems, you can ask about a) how fast AI progress appears to be progressing, b) when it will reach a certain performance bar, c) whether AI will cause something like human extinction. In the 2016 survey, we asked all of these.Given the choice, if you are hoping to use the data as information, it is often good to ask people about things they know about. In 7, this points to aiming your question early in the reasoning chain, then doing the inference yourself.Interest in surveys doesn’t seem very related to whether a survey is a good source of information on the topic surveyed on. One of the strongest findings of the 2016 survey IMO was that surveys like that are unlikely to be a reliable guide to the future.This makes sense because surveys fulfill other purposes. Surveys are great if you want to know what people think about X, rather than what is true about X. Knowing what people think is often the important question. It can be good for legitimizing a view, or letting a group of people have common knowledge about what they think so they can start to act on it, including getting out of bad equilibri

 https://www.lesswrong.com/posts/gs3vp3ukPbpaEie5L/deliberate-grieving-1This post is hopefully useful on its own, but begins a series ultimately about grieving over a world that might (or, might not) be doomed. It starts with some pieces from a previous  coordination frontier sequence post, but goes into more detail.At the beginning of the pandemic, I didn’t have much experience with grief. By the end of the pandemic, I had gotten quite a lot of practice grieving for things. I now think of grieving as a key life skill, with ramifications for epistemics, action, and coordination. I had read  The Art of Grieving Well, which gave me footholds to get started with. But I still had to develop some skills from scratch, and apply them in novel ways.Grieving probably works differently for different people. Your mileage may vary. But for me, grieving is the act of wrapping my brain around the fact that something important to me doesn’t exist anymore. Or can’t exist right now. Or perhaps never existed. It typically comes in two steps – an “orientation” step, where my brain traces around the lines of the thing-that-isn’t-there, coming to understand what reality is actually shaped like now. And then a “catharsis” step, once I fully understand that the thing is gone. The first step can take hours, weeks or months. You can grieve for people who are gone. You can grieve for things you used to enjoy. You can grieve for principles that were important to you but aren’t practical to apply right now. Grieving is important in single-player mode – if I’m holding onto something that’s not there anymore, my thoughts and decision-making are distorted. I can’t make good plans if my map of reality is full of leftover wishful markings of things that aren’t there.