John Carmack Profile
John Carmack

@ID_AA_Carmack

1,086,156
Followers
243
Following
295
Media
17,219
Statuses

AGI at Keen Technologies, former CTO Oculus VR, Founder Id Software and Armadillo Aerospace

Dallas, TX
Joined August 2010
Don't wanna be here? Send us removal request.
@ID_AA_Carmack
John Carmack
4 years
Someone noticed that when you have hundreds / thousands of cores in a supercomputer, the individual utilization boxes in Task Manager start to look like pixels. People started making pictures by doing different amounts of work on specific processors. It escalated quickly.
247
9K
31K
@ID_AA_Carmack
John Carmack
1 year
I love seeing game crossovers — totally supportive of Doom Slayer in Fortnite!
@KOR_DEMON_
데몬
1 year
75
824
7K
190
1K
22K
@ID_AA_Carmack
John Carmack
1 year
I still get nervous even for other people’s rocket launches. The knowledge that all your work could go up in a giant explosion is a special kind of frisson. But for everyone that has ever drawn a spark of inspiration from visions of humanity expanding into space:This is the Way.
@SpaceX
SpaceX
1 year
Targeting as soon as Monday, April 17 for the first flight test of a fully integrated Starship and Super Heavy rocket from Starbase in Texas →
Tweet media one
2K
9K
46K
486
1K
21K
@ID_AA_Carmack
John Carmack
3 years
A troll was trying to get a rise out of me yesterday, suggesting that I should somehow feel bad about Elon's success after my failed aerospace venture. I can't overstate how alien that thought is to me -- my joy at these things being built is deep.
@elonmusk
Elon Musk
3 years
Moving rocket to orbital launch pad
Tweet media one
Tweet media two
Tweet media three
6K
15K
176K
237
793
21K
@ID_AA_Carmack
John Carmack
1 year
From a DM, just in case anyone else needs to hear this.
Tweet media one
367
4K
21K
@ID_AA_Carmack
John Carmack
3 years
Starbase is extremely impressive. There is a lot of bemoaning that we culturally can't build physical things anymore, but this is China Speed and then some. Rows of engines, hangars full of structures, 24/7 shifts -- it is a sight to behold.
Tweet media one
@elonmusk
Elon Musk
3 years
@ID_AA_Carmack It would be an honor to have you visit Starbase
350
342
15K
359
1K
18K
@ID_AA_Carmack
John Carmack
3 months
“Coding” was never the source of value, and people shouldn’t get overly attached to it. Problem solving is the core skill. The discipline and precision demanded by traditional programming will remain valuable transferable attributes, but they won’t be a barrier to entry. Many…
@Carnage4Life
Dare Obasanjo🐀
3 months
Jensen Huang, CEO of Nvidia, argues that we should stop saying kids should learn to code. He argues the rise of AI means we can replace programming languages with human language prompts thus enabling everyone to be a programmer. AI will kill coding.
1K
5K
21K
598
3K
18K
@ID_AA_Carmack
John Carmack
1 year
@elonmusk I may be reading this incorrectly, but if you are actually deleting inactive accounts and all their historic tweets, I would STRONGLY urge you to reconsider. Letting people know how many “active” followers they have is good information, but deleting the output of inactive…
601
804
15K
@ID_AA_Carmack
John Carmack
4 years
Great! I think Microsoft has been a good parent company for gaming IPs, and they don’t have a grudge against me, so maybe I will be able to re engage with some of my old titles.
@GIBiz
GamesIndustry
4 years
Xbox buys Bethesda parent Zenimax, including internal studios such as id Software and Arkane - but Bethesda will still publish its own titles
41
247
2K
436
2K
14K
@ID_AA_Carmack
John Carmack
3 months
The AI behavior guardrails that are set up with prompt engineering and filtering should be public — the creators should proudly stand behind their vision of what is best for society and how they crystallized it into commands and code. I suspect many are actually ashamed. The…
@nearcyan
near
3 months
YOU HAD ONE JOB
Tweet media one
70
149
2K
292
2K
12K
@ID_AA_Carmack
John Carmack
1 year
Last night I downloaded Quake III Arena on Steam. I always looked back at it as my favorite Id game, but it had been many years since I had actually played it. There are a few polish things that I would nitpick today, but it was like dropping a quarter in a classic arcade game.…
529
690
12K
@ID_AA_Carmack
John Carmack
2 years
It is interesting how multiple polls show that most respondents think Twitter will likely be somewhat better in the future, but the conversation on Twitter itself is dominated by confident predictions of catastrophe. I wish there were good prediction markets to advocate for.
713
474
9K
@ID_AA_Carmack
John Carmack
7 months
Be an Open Source Absolutist! It is hard to overstate how much value Open Source Software has added to the world, and how broadly empowering it is. Operating systems, development tools, core libraries, and critical applications – a great many of the software tools used by the…
269
2K
9K
@ID_AA_Carmack
John Carmack
4 years
So, 50 years old now. I am down a point of Str and Dex from my younger days, but I'm a more capable engineer than ever. I'm noticing more people in their 70s that seem sharp and spry, so I'm looking forward to at least a couple more decades of relevance.
302
501
9K
@ID_AA_Carmack
John Carmack
1 month
I regret not doing more to support and defend @PalmerLuckey at Facebook. We were in different states and divisions, and I was largely out of the political loop, but when I became aware of the situation I should have made a clear and open statement of opposition to the witch hunt.…
@pmarca
Marc Andreessen 🇺🇸
1 month
I regret not doing more to support and defend Brendan then. I should have realized what it meant and what was to follow. I do not intend to make that mistake again.
194
864
7K
160
639
8K
@ID_AA_Carmack
John Carmack
2 years
It is hard for people today to comprehend how slow an original IBM PC was. By some measures, a 4090 is a billion times faster, which means a PC working continuously for 40 years could be replaced by one second of modern computing. And yet, this could be done.
@moniquelive
moniquelive 🏳️‍⚧️
2 years
This is pure wizardry I believe @ID_AA_Carmack will find this amusing.
53
183
1K
322
777
8K
@ID_AA_Carmack
John Carmack
1 year
When I first started getting successful in my 20s, I went through a period where I loaned money to anyone that asked me. Well into six figures went out — “emergency” expenses, start a business, make a down payment, etc. Most of the people just never spoke of it again, and \
155
392
8K
@ID_AA_Carmack
John Carmack
1 year
I find it surprising that Windows considers it an acceptable default to just reboot users’ machines after applying an update in the middle of the night.
496
355
7K
@ID_AA_Carmack
John Carmack
11 months
If anyone from Apple wants to send me one of the new headsets, I’ll do a thorough review and offer suggestions. 😀
217
279
7K
@ID_AA_Carmack
John Carmack
4 months
Considering that muffin tops are the best part, it occurs to me that in zero gravity on the ISS, you could bake spherical muffins that are “all top” by just floating a ball of dough in the oven with no pan.
Tweet media one
503
368
7K
@ID_AA_Carmack
John Carmack
6 years
I had been considering writing something along these lines myself. I'm surprised how many people are so eager to see @elonmusk brought low. I admire him.
@PopMech
Popular Mechanics
6 years
In Defense of @ElonMusk : The Tesla and SpaceX maestro is under attack for bad tweets, production woes, and strange behavior. But we need people who take risks. We need people who try. The new cover story:
175
1K
4K
122
676
7K
@ID_AA_Carmack
John Carmack
1 year
Last week, when my Uber driver asked where I had been and I said “watching a rocket launch”, she lit up with excitement, because she had watched it online. She was from Kenya, and filled with enthusiasm for space exploration, solar power, batteries, and electric cars. She was…
147
286
7K
@ID_AA_Carmack
John Carmack
7 months
Playing a virtual reality game with remote friends through a satellite internet connection from a solar powered off grid location that you drove to in your electric car does indeed feel quite cool.
Tweet media one
190
417
7K
@ID_AA_Carmack
John Carmack
6 years
My kids asked me if I had heard of a YouTuber named Weird Al Yankovic.
87
1K
6K
@ID_AA_Carmack
John Carmack
4 months
It is exciting that Argentina has elected a hard core libertarian, but I am almost completely ignorant about the situation there — any good pointers for English reading to get up to speed?
669
543
6K
@ID_AA_Carmack
John Carmack
3 years
Forgive me the dad-brag, but my son got a perfect SAT score on his first try, and I am very proud of him!
122
43
6K
@ID_AA_Carmack
John Carmack
1 year
Wow. That was really something! The entire building was shaking! Enormous levels of competency at SpaceX.
@bitman_mars
🌱 Zen Musk 🐀
1 year
@ID_AA_Carmack With frontline tickets - That's awesome!
Tweet media one
11
29
578
78
269
6K
@ID_AA_Carmack
John Carmack
3 years
It is @Wikipedia 's 20th anniversary today. It is hard to remember from today's perspective how viciously the idea of a publicly edited encyclopedia was mocked by many traditional gatekeepers of knowledge. It is hard to imagine a better refutation.
81
748
6K
@ID_AA_Carmack
John Carmack
7 years
Anyone that has me on too high of a pedestal should see me fumbling around with git.
160
1K
6K
@ID_AA_Carmack
John Carmack
4 years
<cracks open diet coke, fires up Visual Studio>
199
489
5K
@ID_AA_Carmack
John Carmack
11 months
Bigscreen Beyond feels like a prop for a futuristic movie, but it works! Far and away the smallest and lightest PC VR headset.
Tweet media one
99
362
5K
@ID_AA_Carmack
John Carmack
2 years
I mentioned this in the Lex interview, but it is official now: Keen Technologies, my new AGI company, has raised a $20M round, led by @natfriedman and @danielgross , with @patrickc , @tobi , @sequoia , @CapitalFactory , and Jim Keller participating.
227
393
5K
@ID_AA_Carmack
John Carmack
2 years
I do not have “magical” discipline and focusing ability — I struggle with distractions like everyone else. Often it is better to just remove the option to distract yourself instead of fighting he urges. When I decided to get serious about my AI work, I made a few changes: \
79
460
5K
@ID_AA_Carmack
John Carmack
3 years
The spinal cord has about the same number of neural connections as the optic nerve — to your brain, all of your body from the neck down is worth about one eye.
86
423
5K
@ID_AA_Carmack
John Carmack
4 years
Just ordered a couple 1TB thumb drives for $30 each. I still find myself awestruck by tech progress -- I desperately wanted a 10MB hard drive for my IIGS as a teen, but didn't have the $399. One million times cheaper per byte, one thousand times faster, and 100 times smaller now.
161
530
5K
@ID_AA_Carmack
John Carmack
7 months
This is written without any wild eyed fear mongering, and I like some of the historical perspectives, but he is clearly a statist. He previously worked in government, expresses concern for the government almost as often as concern for people, and wants to see powers expand in…
@mustafasuleyman
Mustafa Suleyman
8 months
My book The Coming Wave is out today: It's about technology, AI, society and the future. Getting to this point has been the culmination of more than a decade of building AI and thinking about its impact. I’ve tried to confront the extraordinary moment…
Tweet media one
178
217
1K
186
615
5K
@ID_AA_Carmack
John Carmack
5 years
It is true, I incorrectly recalled the tenth digit of Pi.
@doom_txt
doom_txt
5 years
Happy #PiDay the Doom source code includes an incorrect approximation of pi as 3.141592657 instead of the correct 3.141592654. I hope someone got fired for that blunder
Tweet media one
19
184
866
104
1K
5K
@ID_AA_Carmack
John Carmack
4 years
If a future Neuralink implant is to allow bidirectional communication between a human and an AI, it is unclear which entity would be the peripheral. Even today's narrow AI can be super-human at controlling balky, recalcitrant actuators, given feedback and enough trials.
147
319
5K
@ID_AA_Carmack
John Carmack
1 year
With all the GPT4-will-change-everything hype and fanfare happening now, it is worth mentioning that I just had to deal with some rural contractors that DIDN’T HAVE EMAIL ADDRESSES. The system of the world has more inertia than it sometimes seems.
182
376
5K
@ID_AA_Carmack
John Carmack
4 years
It is Quake 3’s 20th Anniversary today. I still have one of the trade show launch props in my garage.
Tweet media one
144
691
5K
@ID_AA_Carmack
John Carmack
2 months
I was continuously distressed at Meta over how few people in the VR org would actually talk to customers using the products, or even read the app reviews and user voice comments they had taken the time to write. Bold New Visions were way more popular than Fixing Broken Shit.
@levie
Aaron Levie
2 months
The best founders I know — no matter their company’s scale — thrive on doing customer support directly. There’s literally no better way to understand the pulse of your customer base, what features to build next, or where systems are breaking down. It’s always upside.
107
304
2K
154
389
5K
@ID_AA_Carmack
John Carmack
11 months
I spent *hours* today debugging something that turned out to be a single wrong letter in the code: a .ge() should have been .gt(). Beginning programmers sometimes despair when debugging, but with experience it is just something to grind through.
225
292
5K
@ID_AA_Carmack
John Carmack
3 months
I have a bar of titanium and a bar of silver in the refrigerator to give Trista a visceral demonstration of how thermal conductivity changes the perception of temperature.
Tweet media one
186
214
5K
@ID_AA_Carmack
John Carmack
1 year
I don’t feel it, and I don’t think it is rational, but I do see it. The zeitgeist of the thought leaders does tend negative. I remember waving my flag of technological optimism in the 90s and getting smiling chuckles from people, while now I can count on at least some angry…
@nice_byte
nicebyte
1 year
do you feel it too? the absence of any optimism for the future? it’s completely gone from the cultural zeitgeist. such a stark contrast compared to the early 00s. or is it just me getting old and jaded and looking at the past through a nostalgia filter?
217
70
1K
264
566
5K
@ID_AA_Carmack
John Carmack
4 years
I still feel pretty good about the commencement speech I gave a few years ago:
371
440
4K
@ID_AA_Carmack
John Carmack
5 months
I was helping with some C code yesterday and got a bunch of errors — I hadn’t put a semicolon on any of the lines. I’m writing too much python code!
185
157
4K
@ID_AA_Carmack
John Carmack
2 years
I’m looking forward to the moon and Mars having indigenous people.
382
213
4K
@ID_AA_Carmack
John Carmack
4 years
Hey @elonmusk -- How about Teslas as VR input devices. Add a 'controller mode' that allows a headset to pair with the car to get steering / pedal / switch input. Better than a dedicated racing cockpit for drivers' ed and gaming. I let my son drive my S around a bit today...
135
226
4K
@ID_AA_Carmack
John Carmack
3 months
For the last several years at Id Software, almost all of my coding was inside a single monolithic codebase, with the utilities integrated. Visual Studio was a delight to work with. Armadillo Aerospace only had two modest programs that evolved over a decade. VS for client and raw…
105
234
4K
@ID_AA_Carmack
John Carmack
1 year
By my mid 20s I had made some conclusions about myself like “I’m not a higher math guy” and “I’m not a Unix guy”, and I have let them color my work for decades. I work with math and Unix, but I never feel fully aligned with those who are deeply enmeshed. I have had plenty of…
124
294
4K
@ID_AA_Carmack
John Carmack
1 year
It is 18 months after Connect 2021, and my $10k bet that “Roblox will not be surpassed in revenue by a decentralized, web based metaverse” is handily won. Does anyone know Shaw Walters? He seems to have disappeared from Twitter.
53
205
4K
@ID_AA_Carmack
John Carmack
3 years
A common mistake I see in UI work is fades/transitions taking too long. UI should work in "game time", not "cinematic time". A transition should happen as fast as an impatient user can button mash -- a small-integer number of frames.
99
408
4K
@ID_AA_Carmack
John Carmack
1 year
issues, so I knew it would be extra frustrating to keep pushing my viewpoint internally. I am all in on building AGI at Keen Technologies now.
151
129
4K
@ID_AA_Carmack
John Carmack
3 years
Docker containers are kind of neat. They are also kind of a craven surrender to the rotting mess of excessive software complexity.
84
504
4K
@ID_AA_Carmack
John Carmack
6 years
I know there are decent odds something will go wrong with the @SpaceX launch today, but I'm not really nervous, because I know that even in the worst case, they will clean up the rubble, learn lessons, and get on with it. On the other hand, the best case is GLORIOUS!
46
408
4K
@ID_AA_Carmack
John Carmack
3 years
Something I have been pushing on for years is going to come to pass soon: We are going to make available an unlocked OS build for the Oculus Go headset that can be side loaded to get full root access.
107
453
4K
@ID_AA_Carmack
John Carmack
5 years
Heading out to LA to do the @joerogan show tomorrow!
146
327
4K
@ID_AA_Carmack
John Carmack
4 years
I used to say that AI research seemed to have an odd blind spot towards automation of programming work, and I suspected a subconscious self-preservation bias. The recent, almost accidental, discovery that GPT-3 can sort of write code does generate a slight shiver.
121
448
4K
@ID_AA_Carmack
John Carmack
1 year
person, but he reached out and said that it had always weighed on him, his latest business was doing well, and he wanted to pay me back. I found this moving after all this time, and I get to push a nice positive update into my personal “model of how people behave.”
24
38
4K
@ID_AA_Carmack
John Carmack
8 months
The annoying beep from smoke detectors when their battery is low can be very difficult to localize because the audio HRTF (head relative transfer function) gets much of the information from differential results across frequencies. A rich tone is better than a sine wave, and a…
269
203
4K
@ID_AA_Carmack
John Carmack
1 year
I don’t think I had ever seen the term “malinformation” — something that is true, but likely harmful from some points of view. It popped up twice today in different contexts, and I have a visceral negative reaction to the concept.
@elonmusk
Elon Musk
1 year
Concerning
9K
30K
134K
165
340
4K
@ID_AA_Carmack
John Carmack
3 years
Old programmers instinctively recognize powers of two, but a younger generation of higher level programmers often don’t. I was pleasantly surprised when my young son was considering 16 and 32 ‘neat’ numbers. It was due to Minecraft.
94
234
4K
@ID_AA_Carmack
John Carmack
1 year
A candle produces roughly the same amount of energy as a resting human — 80 to 100 watts, also consuming about the same amount of oxygen and producing the same amount of CO2. In an enclosed area, adding candles is about like adding people from an air quality standpoint.
161
280
4K
@ID_AA_Carmack
John Carmack
11 months
AAA game dev often does a lot of analytics around where they lose players, and how “stuck” they get in various places. Amazon could provide similar info for kindle books, and authors could learn a lot from it — where are readers bored, and where are they binging?
185
162
4K
@ID_AA_Carmack
John Carmack
1 year
I listened to audiobooks at 1.5x speed for years. I had tried 1.75x, but found it a bit too fast for comfort. Recently, I tried going up 0.1x every couple books, and now 1.9x is perfectly usable. This is a substantial benefit!
285
128
4K
@ID_AA_Carmack
John Carmack
1 year
Had a moment of panic when @BeatSaber didn’t show up in my VR library today. Turns out you lose your freebie entitlements when you leave Meta. I am perfectly happy to give them an actual $29.99 for it! My scores remained, thankfully.
87
104
4K
@ID_AA_Carmack
John Carmack
8 months
I remain unconvinced that mixed reality applications are any kind of an engine for increasing headset sales. High quality pass through is great, but I just don’t see applications built around integrating rendering with your real world environment as any kind of a killer app. I…
531
300
4K
@ID_AA_Carmack
John Carmack
1 year
I find myself impressed that I can scp a six terabyte file over the Internet and it just worked.
157
88
4K
@ID_AA_Carmack
John Carmack
2 years
I had suggested to Lex that he edit it down to a more manageable size, but we didn’t even cover half the things we wanted to talk about. It might make sense to factor me into independent gaming/rockets/VR/AI phases, but everything winds up overlapping.
@lexfridman
Lex Fridman
2 years
Here's my conversation with John Carmack ( @ID_AA_Carmack ), legendary programmer & engineer. At over 5 hours, this is officially the longest conversation I've had on the podcast, and we can talk many more times. This was really fun and a huge honor for me.
Tweet media one
203
482
4K
221
324
4K
@ID_AA_Carmack
John Carmack
2 years
Watching YouTube often makes me feel good about humanity — so many people sharing lifetimes of skills and knowledge. Then ads come on that are so transparently snake oil, and I am saddened knowing that millions of people lack the critical thinking to see through them.
159
269
4K
@ID_AA_Carmack
John Carmack
5 years
All obstacles are cleared and all objections are dealt with – after several years of requests, I’m finally going on the @joerogan show next month!
180
462
4K
@ID_AA_Carmack
John Carmack
2 years
The old guard launch companies are on no trajectory to catch up to SpaceX. Continued denial is likely behavior, but it would be fun if they accepted it and took a hard turn away from conventional and tried some Crazy Plan C behavior — rotovators, SSTOs, heck, (space) Orion maybe!
121
160
3K
@ID_AA_Carmack
John Carmack
8 months
The idea that the internet was created to survive nuclear war is apocryphal; packet routing does provide some resilience, but you will lose internet in an apocalypse. Space based systems are interesting to consider — they tend to be very reliant on ground systems, but it would…
182
361
4K
@ID_AA_Carmack
John Carmack
9 months
My first QuakeCon in a decade! I’m so happy that everything is cool now and I am welcome. I wasn’t quite sure what to expect with a post-COVID, no general admission event, but the BYOC was packed, and the energy was high even on day 3.
Tweet media one
Tweet media two
66
156
4K
@ID_AA_Carmack
John Carmack
6 months
There was talk about @idSoftware doing something official for Doom’s 30th anniversary, but it didn’t come together, so Romero’s Twitch stream it is!
@romero
John Romero 🤘🏽
6 months
In addition to SIGIL II (), I've got some other great news to celebrate DOOM's 30th Anniversary. Join me and John Carmack @ID_AA_Carmack to discuss DOOM live, moderated by David L. Craddock @davidlcraddock . Dec 10 8pm GMT on . Thanks…
Tweet media one
111
947
5K
80
408
3K
@ID_AA_Carmack
John Carmack
2 months
In the 90s, there were a dozen companies making graphics accelerators, and Nvidia wasn’t initially a clear winner. Their first product was terrible, and 3DFX, 3DLabs, Rendition, and others all had important pieces of the puzzle earlier. However, they relentlessly improved and…
151
330
4K
@ID_AA_Carmack
John Carmack
1 year
As anyone who listens to my unscripted Connect talks knows, I have always been pretty frustrated with how things get done at FB/Meta. Everything necessary for spectacular success is right there, but it doesn't get put together effectively.
40
148
3K
@ID_AA_Carmack
John Carmack
3 years
@shivon Has the feel of the old building-the-skyscrapers photos.
64
71
3K
@ID_AA_Carmack
John Carmack
1 year
It is also an interesting lesson that after decades in the game industry, he is seeing his biggest success making plushies… Always keep your eyes open for new opportunities!
51
91
3K
@ID_AA_Carmack
John Carmack
4 months
Classic Atari games are so small that you could include them as inline comments, and yet terabytes of data are generated from them for reinforcement learning research. The emergent complexity of automata!
55
261
3K
@ID_AA_Carmack
John Carmack
3 years
Employee levels in tech are a pretty big deal for compensation and evaluation, but are usually hidden from general view. I wonder if it might work better if they were visible like military ranks, so you knew at a glance something of what should be expected from a person.
121
116
3K
@ID_AA_Carmack
John Carmack
3 months
Every solar panel is like a giant pixel in a camera sensor, turning photons into a voltage. With billions of them across the world, it is interesting to imagine what they could collectively “see” of the sun and atmosphere, even though they have no focusing machinery. Conversely,…
130
178
3K
@ID_AA_Carmack
John Carmack
2 years
I am a quarter of the way through War and Peace, and I don’t like a single character in it.
268
103
3K
@ID_AA_Carmack
John Carmack
4 years
Sigh. 1.6 Kg of CO2 = 3.5 Kw/h with the US generation mix, so to consume that in a half hour implies that end-to-end streaming consumes 7000 watts, which is off by well over an order of magnitude. We can quibble about accounting with 2x, but 10x is just BS.
79
582
3K
@ID_AA_Carmack
John Carmack
11 months
I looked up the budget for a small town library: Under $180k covers three employees, facility maintenance, and all the collections. Served population of 9k, so $20/resident. 13k visits, so around $14 per visit.
109
102
3K
@ID_AA_Carmack
John Carmack
4 years
I remain easily optimistic in the face of everything happening. Consider the most amazing person you personally know, by any quality metric you choose. Odds are that there are literally millions of their caliber in the world, which is plenty to build a bright future.
94
504
3K
@ID_AA_Carmack
John Carmack
6 months
Chrome showing memory utilization for each tab on hover is an excellent feature — awareness of resource consumption is necessary to care about it. Still a bit mind blowing for old timers to see dozens of tabs taking tens or hundred of MB each.
160
164
3K
@ID_AA_Carmack
John Carmack
2 years
Almost four years after it was initially discussed, I am finally doing the podcast with @lexfridman tomorrow! The path to my @joerogan episode was equally long, but it turned out great; I'm looking forward to the conversation.
78
149
3K
@ID_AA_Carmack
John Carmack
4 years
I made a lifestyle change last year, adding a 3+ mile walk every day, rain or shine. It did take a bit out of my work hours, but covering 39 audio books and Great Courses has been valuable.
76
140
3K
@ID_AA_Carmack
John Carmack
4 years
The Mad Max post-apocalyptic muscle car esthetic needs to be updated — a bunch of jacked up Teslas recharging from solar panel farms works a lot better than a hacked together oil refinery.
108
279
3K
@ID_AA_Carmack
John Carmack
3 years
Someone gave me a rather prophetic heads up on the GME excitement two and a half months ago.
Tweet media one
38
290
3K
@ID_AA_Carmack
John Carmack
1 year
Everyone knows that when you have similar code repeated several times that you should consolidate into a loop or function, but changing discrete variables into arrays and adding loops can have a small readability cost, so sometimes it can feel like a debatable choice for…
139
189
3K
@ID_AA_Carmack
John Carmack
2 years
I skipped a generation of GPUs on my desktop. With the completely unoptimized model I am currently working on: Single Titan RTX: 156s 4090: 62s DGX Single A100: 42s
Tweet media one
Tweet media two
137
139
3K
@ID_AA_Carmack
John Carmack
3 years
It is hard for less experienced developers to appreciate how rarely architecting for future requirements / applications turns out net-positive.
@promit_roy
Promit Roy ⚡
3 years
As someone who ends up building a lot of architectural and infrastructure code, there's one thing I cannot emphasize enough: do the simplest thing that works. Do not try to imagine future requirements, or support ill-defined potential use cases. It will always change later.
55
481
3K
78
702
3K
@ID_AA_Carmack
John Carmack
4 years
It has been 18 years since I first talked with @elonmusk about his Falcon 1 plans. If this was a sci-fi novel it would have happened in a third the time, but aside from that, this is a golden age story playing out before our eyes. Scoffing at Mars should be getting hesitant.
@SpaceX
SpaceX
4 years
Crew Dragon has separated from Falcon 9’s second stage and is on its way to the International Space Station with @Astro_Behnken and @AstroDoug ! Autonomous docking at the @Space_Station will occur at ~10:30 a.m. EDT tomorrow, May 31
2K
21K
114K
36
332
3K
@ID_AA_Carmack
John Carmack
5 months
This is a great little book to take you from “vaguely understand neural networks” to the modern broad state of practice. I saw very little to quibble with.
69
373
3K
@ID_AA_Carmack
John Carmack
9 months
When I stopped doing Android VR work, I thought “Ha! I’m never going to have to look at Gradle again!” but now my son asked for help making a Minecraft mod…
78
104
3K
@ID_AA_Carmack
John Carmack
5 months
There is an art installation at DFW airport that looks like CG aliasing and I hate it.
155
172
3K