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Independent AI researcher, Consulting CTO Oculus VR, Founder Id Software and Armadillo Aerospace

232 Following   934,488 Followers   15,124 Tweets

Joined Twitter 8/7/10


Does anyone know if the old 8 and 16 bit source code even still exists at Apple? The Apple 2 line was the early see… https://t.co/QGNnqDlYiM @TripingPC Just the last Go update, but with root. @cm_richards @gravicle This is just Oculus Go, with no cameras, not Quest. I still heard a lot of arguments about w… https://t.co/5tKJ923ElY @nice_byte I very much want that world to exist, where the early days of VR are explored as history. @gravicle Legal wasn't problematic -- FB lawyers are surprisingly cool about a lot of efforts that you might expect pushback on. @esesci This is specific to Go, but I hope it sets a precedent! @chaspen16 It should just be up on the Oculus website, but I don't think the final distribution has been decided. @gravicle I hope this is a precedent for when headsets go unsupported in the future, but damn, getting all the nece… https://t.co/yJr0saiaoV @limitedthread Yes, I'm a part time consultant. I'll be giving my traditional unscripted talk at Connect next month.This opens up the ability to repurpose the hardware for more things today, and means that a randomly discovered shr… https://t.co/ND2QKZ6pnGSomething I have been pushing on for years is going to come to pass soon: We are going to make available an unloc… https://t.co/ReWx3qjdaa
9/24
2021
Look what I found at #FANEXPODallas last weekend! I had hoped to run in to @donttrythis to talk VR and Beat Saber… https://t.co/UCYZZcHgltEdge effects like precise tile clipping rules would complicate it a lot, but just the free-space behavior would be… https://t.co/ttiD0FoNP9It would be interesting to have the precise movement dynamics of multiple games in a genre, like Mario and Sonic, a… https://t.co/RO4rbgS3Td
9/23
2021
@RoboSabs This one snuck up on me, or I would have pre-announced a time!
9/22
2021
When the Bitcoin E-Waste articles (https://t.co/yvjtCGxciO) went around a few days ago, my initial thought was that… https://t.co/VjrsReBjrY
9/21
2021
On October 28, join us virtually at Connect 2021 to take part in building the future of AR/VR. Register now for upd… https://t.co/BtuLkIfbvM
Retweeted by John Carmack @NYarvin @mullender It would imply going up at a significantly slower speed before accelerating high up. It might b… https://t.co/7AdkQlXODj
9/20
2021
@mullender I’m suggesting no flip at all, passively stable nose-first into the water. Throwing a lot of efficiency… https://t.co/ftXmpmS0S4 @mullender The critical point is that the part making it draggy in the air, the flared tail, is the last thing that… https://t.co/yRzEI2MGLX @walkerjian The passenger is way up in the nose cone, and the flare puts the CP way in back. Easily stable.👿 DOOM Version 1.9 SHAREWARE VERSION PLEASE DISTRIBUTE!! 💾 Lets install DOOM on twitter a thread... 🧵 https://t.co/x6rpWgeT26
Retweeted by John CarmackAn odd aerospace idea I had long ago was a very skinny pressure fed suborbital rocket with a significantly flared b… https://t.co/YfcLypStzn
9/19
2021
@paulg How do people tend to feel about replacing the missing blocks in things like that? Respectful or desecration?
9/18
2021
@crypto_anxiety Looks a bit different, but it might be another Norwood Autocraft job. @RAM_Bang_ There wasn’t a separate “engine” for any of those, but code was copied between all of them. The fundamen… https://t.co/2BfKIMfJO1
9/17
2021
@RNKinsenquera @OculusSupport The data referenced by that article shows around 85% are within the Q2 adjustment ran… https://t.co/U6bgAx7b7z @BartWronsk @omershapira @TimSweeneyEpic It might be that crisp spectral points from (O)LED or laser are important. @TimSweeneyEpic @omershapira I had never heard of this -- thanks! Not sure if it would net out better than pentile… https://t.co/gMOvIHXv50 @msinilo @zeuxcg Four cores is sort of an awkward spot, where single thread performance is still quite important, b… https://t.co/YYrlJ0ilLE @zeuxcg “Not very efficient, but very parallel” can go a long ways! It has been interesting watching everything evo… https://t.co/GTvTfp2dpD @AshleyGullen @TestPlayLearn @Schwarzenegger @elonmusk That is good advice. Look at everything through the lens of… https://t.co/DVv5tyyjOs @Karyuutensei I am 100% against software patents. I am unsure if patents provide net positive value to society in a… https://t.co/EURwqjis5Q
9/16
2021
@ElmarMoelzer @paulg @Helion_Energy @energy_zap Fusion generator designs are even less meaningful than all the reus… https://t.co/OkmKVf9Ld3 @chr0n0kun @paulg I like direct energy conversion from fission fragments — even if the efficiency was terrible, it… https://t.co/1h796L2GyD
9/15
2021
@the__dude98 @paulg Only if it is cheaper, which isn't at all clear. Unlikely, even. An inexhaustible baseline is… https://t.co/OFYeoR4vNt @paulg Deuterium fusion would give us a cheap and basically unlimited fuel source with a modest waste stream, but i… https://t.co/8gts0sZx34 @Heaney555 @kalinowski007 More precision can probably be added — there were concerns about accurately centering the… https://t.co/Hrt08lctyA
9/14
2021
@starsandrobots I have a two hour time limit on Twitter that I occasionally bump into. @RNKinsenquera @OculusSupport Software could address the sense-of-scale issue with the lens into-axial distance not… https://t.co/xLvK0r4xA1
9/13
2021
@DevSpacePrez "Some people" are showing up in the replies to the tweet -- it is probably the default position, not… https://t.co/MzNWX7sUGT @DevSpacePrez It is the "disingenuous", not the "self serving" that I am pushing back on -- deception can be an eff… https://t.co/mjTH97XI7kEvery few years I wind up back at https://t.co/IP29Q7efqg reading carefully curated old Usenet posts.It is easy to be cynical and assume that wealthy people’s positions are disingenuously self serving, but in many ca… https://t.co/876KzZXuc0
9/11
2021
I find it kind of magical that an iterated linear dynamic system with just two parameters makes perfect sine waves.… https://t.co/qJE50Hoqtu
9/9
2021
@mmomtchev If you are operating exclusively on single precision variables and literals (0.1f), then you get true si… https://t.co/Bq9NLZJCeA
9/8
2021
When I am doing numerical work from scratch in C/C++, I usually define a "Real" type (shades of Pascal!) that I cha… https://t.co/Wy6CQkCYGzon either side. It is a really hard problem, but the workforce is clearly nowhere near an optimal distribution. Thi… https://t.co/NfdFjFlUHQcost to an organization, and "interview everyone" is not viable for places in high demand. Given imperfect signals,… https://t.co/MJH1PVkbK6influence. Disqualifications are rarely explicitly stated, but they exist. If a company has a reasonable flow of ap… https://t.co/ZpG47Gy9BAPeople like the idea of hard and fast rules, but putting +/-infinity as a factor in a policy decision is almost nev… https://t.co/6Lxq0gOUr8I meant an L1 norm instead of an L2 -- so many uses of an L2 norm are kind of for symbolic convenience to avoid abs… https://t.co/1v9tbsigpj @im_a_ct Sorry, yes -- an L1 distance.All the batch/layer/weight/etc norms in machine learning normalize by dividing by the root-of-mean-of-squares, but… https://t.co/WiFeCZM45w
9/7
2021
@tsundokugames It pushed the quarter through 6" of foam block and into the target bag behind it. @PRES_00 15 yards. I wouldn't want to shoot anything point blank with a high power crossbow. @mcjamez They are normally threaded, but I would be inclined to just epoxy a stepped tungsten cone into a carbon fiber bolt.I was curious if my Ravin crossbow would shoot through a quarter. I was considering what it would take to fabricate… https://t.co/FZ916cAxjH
9/6
2021
@vrhermit @oculus @Oculus_Dev I don't know why we lost this -- I liked that feature. I'll look into it.
9/4
2021
@StuartEllison @asciiartclub Yes, which is why I expect a 1000x improvement in AI price / performance over the next… https://t.co/9WYGsVqrt8 @StuartEllison @asciiartclub Alpha zero trained on a lot more than chess, and TPU costs are a LOT more than electri… https://t.co/ZLLJE25pba @StuartEllison @asciiartclub That is the amortized cost of owning and operating the TPUs and training all the model… https://t.co/5muTpvk4BM @StuartEllison @asciiartclub Do you have a cite for $150m in electricity alone to train AI to play (presumably) chess? That sounds high.
9/3
2021
While there is no indication that they are directly charging at it, "AGI developed in Saudi Arabia" might need an a… https://t.co/QQa42Vg77R
9/2
2021
Listening to an Audible original (Zero Day Code series), it really stood out when they used an audio filter for tal… https://t.co/iv9PrpTtEX @yerfdogyrag I usually run the server for an hour. That was hard work with unknown maps! @americanmcgee @Sabertooth0023 I hadn't heard the F2P only angle -- so an online game with a paid subscription is exempt?
9/1
2021
@OZZEY_H @runarorama Nobody should deny that the rise of China has been remarkable on a lot of levels. I am individ… https://t.co/qZUPfwmDKpI'll post a server code at 8 pm central if anyone wants to join me on my first play through -- once through on expe… https://t.co/RliWueM8ax @datajams_ Got a link about that? I would be interested in learning more about how it was implemented and how it played out.I find it disappointing how many are sanguine about the Chinese online gaming limits for kids; exercising authorita… https://t.co/klgI36Ckmh
8/31
2021
@kir_daybov I spent a year reading all the foundational texts to get up to speed on the engineering side, and I bui… https://t.co/qp13M2nrJi @rlenrlen They purchased an unrestricted license, they didn’t use the GPL version. The original copyright holders… https://t.co/l9bxxGNkK8
8/29
2021
@tom_forsyth I'm sticking to CPU/GPU for now, but I am confident that when something important needs better perform… https://t.co/sQdGQ2WyyC @iooian It was an optimistic prediction that didn’t pan out, but it wasn’t ridiculous. @games_riverside @andybrk I don't see that from the papers you posted; the increased infection rate relative to the… https://t.co/VGshFMvlShThe AI accelerator startup space is probably going to be a bloodbath, but it is great to see so much exploration go… https://t.co/3tR1JcA3HrIn contrast, even today in what many consider the waning days of Moore's Law, I am far more confident that we will… https://t.co/2cbJml10VZWhen I started doing aerospace work 20 years ago, one of my strategic thoughts behind doing reusable, pressure-fed… https://t.co/xyyHwVHvJp @games_riverside @andybrk Only 1 in 68 of the vaccinated people became infected, versus 1 in 853 of the previously… https://t.co/sVUlJMWNxY
8/28
2021
@stephenjbrooks Memset is typically much faster than a byte fill loop due to optimized assembly / intrinsics. Large… https://t.co/fW1r24oMe0 @RocketRick https://t.co/DxXB4dkydaThere should be standard libc versions of memset for 2/4/8 byte values, like the cuda cuMemsetD16/32. @BattleAxeVR @Oculus_Dev It might be an engine bug on Android, but every time I have looked into these cases, the t… https://t.co/CxYer4cqBx
8/27
2021
@Love2Code Is it even 10%? Fraction of TSMC spent on GPUs * fraction of GPUs spent on crypto? It is definitely a lo… https://t.co/SOvHkQxDAGNEW Carmack App Review! In his second review in his new series, @ID_AA_Carmack shares his feedback on Racket NX, a… https://t.co/Me4Q9AukkO
Retweeted by John Carmack
8/26
2021
@antovsky Definitely — my theory is that it isn’t the constraint per se that improves things, but the competition i… https://t.co/BUfEBNN7CIforce you to critically evaluate aspects and compete them against each other. Competition brings improvement, but m… https://t.co/ocoOJ5lj4qI have often thought that the presence of limits in the parameters of a design may, counterintuitively, result in b… https://t.co/sSyxrXzDGd @css_css_css That was total energy for a week, so a year of usage would be a bit under 5 kg. Staying home and playi… https://t.co/eKq3WFUk2d @css_css_css 95 grams, not 95 kilograms. Small difference of a factor of 1000. Just visualize it — 95 kg is the mas… https://t.co/qqw9CqeI6z @thebroshina Total for both over a week.I measured the electricity needed for the daily charge of my iPhone and iPad for a week: about 230 watt-hours, or 3 cents worth.
8/25
2021
@vicentesenger @TaliaRinger Formal CS education did nothing for me, but access to computers was crucial — there wer… https://t.co/Fvd0PvIlKI @TaliaRinger For the majority of kids, it is probably gaming as a trigger. Minecraft and Roblox are huge, and very… https://t.co/3gvjSP7Abv @TaliaRinger Thanks. I’m certainly supportive of more hard CS in K-12, but I do contend that it is really easy for… https://t.co/hDuufUCbSv @TaliaRinger That is a surprising stat to me — is it maybe excluding “computer math” or other names? Presumably it… https://t.co/oOEO1iv2gxexciting news: Quest 2 is back on sale with 128GB of storage, at the old 64GB price — $299. More room for more amaz… https://t.co/ayf8O5RSZh
Retweeted by John Carmack @TaliaRinger Doesn’t basically everyone in the US have early access to programming today? All you need is a web bro… https://t.co/3RqbgQGveLBuilding the beat toward a new @BeatSaber music pack drop on 8/31. Get hype. https://t.co/L57ixrMc9h
Retweeted by John Carmack
8/24
2021

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