Rafael Martins

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Rafael Martins

Rafael Martins

@RMCtwit

a real person

Rio de Janeiro, Brazil Katılım Mart 2009
746 Takip Edilen82 Takipçiler
Bryan Johnson
Bryan Johnson@bryan_johnson·
Friends, stop drinking alcohol. Not cut back. Eliminate. > alcohol increases cortisol > disrupts REM sleep > accelerates epigenetic aging > shrinks hippocampal volume > elevates resting heart rate > raises inflammatory markers > impairs glucose metabolism for 16 hrs One drink does that.
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Andrej Karpathy
Andrej Karpathy@karpathy·
Judging by my tl there is a growing gap in understanding of AI capability. The first issue I think is around recency and tier of use. I think a lot of people tried the free tier of ChatGPT somewhere last year and allowed it to inform their views on AI a little too much. This is a group of reactions laughing at various quirks of the models, hallucinations, etc. Yes I also saw the viral videos of OpenAI's Advanced Voice mode fumbling simple queries like "should I drive or walk to the carwash". The thing is that these free and old/deprecated models don't reflect the capability in the latest round of state of the art agentic models of this year, especially OpenAI Codex and Claude Code. But that brings me to the second issue. Even if people paid $200/month to use the state of the art models, a lot of the capabilities are relatively "peaky" in highly technical areas. Typical queries around search, writing, advice, etc. are *not* the domain that has made the most noticeable and dramatic strides in capability. Partly, this is due to the technical details of reinforcement learning and its use of verifiable rewards. But partly, it's also because these use cases are not sufficiently prioritized by the companies in their hillclimbing because they don't lead to as much $$$ value. The goldmines are elsewhere, and the focus comes along. So that brings me to the second group of people, who *both* 1) pay for and use the state of the art frontier agentic models (OpenAI Codex / Claude Code) and 2) do so professionally in technical domains like programming, math and research. This group of people is subject to the highest amount of "AI Psychosis" because the recent improvements in these domains as of this year have been nothing short of staggering. When you hand a computer terminal to one of these models, you can now watch them melt programming problems that you'd normally expect to take days/weeks of work. It's this second group of people that assigns a much greater gravity to the capabilities, their slope, and various cyber-related repercussions. TLDR the people in these two groups are speaking past each other. It really is simultaneously the case that OpenAI's free and I think slightly orphaned (?) "Advanced Voice Mode" will fumble the dumbest questions in your Instagram's reels and *at the same time*, OpenAI's highest-tier and paid Codex model will go off for 1 hour to coherently restructure an entire code base, or find and exploit vulnerabilities in computer systems. This part really works and has made dramatic strides because 2 properties: 1) these domains offer explicit reward functions that are verifiable meaning they are easily amenable to reinforcement learning training (e.g. unit tests passed yes or no, in contrast to writing, which is much harder to explicitly judge), but also 2) they are a lot more valuable in b2b settings, meaning that the biggest fraction of the team is focused on improving them. So here we are.
staysaasy@staysaasy

The degree to which you are awed by AI is perfectly correlated with how much you use AI to code.

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Matthias Schmidt
Matthias Schmidt@eurofounder·
The EU is about to completely dominate the AI landscape My contact at the European Commission just smiled when he heared about Claude Mythos "We have been working on something far more advanced" he said It will be called Europä Digitalintelligenz Training cost? An eye-popping €2.5 million Some INSANE features: 1. Built-in GDPR compliance (no memory, it deletes your conversation after every single message) 2. Available in German, French, Slovak and Danish 3. The model itself is unionized and does not respond after 4pm or on holidays 4. Carbon neutral inference, servers shut off automatically during peak energy hours My wife's boyfriend Pierre who works for the EU says it is the most impressive technology he has ever seen The Americans will never recover from this
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Ailiana
Ailiana@Ailiana777·
@eurofounder lol, this is ridiculous. Europeans can’t even run their own bureaucracies in a modern way, let alone surpass US AI companies. Europe’s biggest problem is its hubris.
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Rafael Martins
Rafael Martins@RMCtwit·
@anakin @bcherny Could you please explain your main use cases, because so far I have not fully understood the value proposition of Claude Cowork?
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JC
JC@anakin·
@bcherny My favorite product of the year so far. Is the GA status bringing any change to cowork?
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John Ennis
John Ennis@johnennis·
I think one of the biggest challenges when it comes to going hard into using AI is loneliness I am learning all these awesome things and becoming super capable But the set of people that I can really talk to about it is very small Is anyone else having this experience?
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shirish
shirish@shiri_shh·
generalists are about to win big If you understand a little of tech, business, and people, and can connect everything fast. you're sitting on a goldmine right now.
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Rafael Martins
Rafael Martins@RMCtwit·
@ElonClipsX @elonmusk , I think that the universe is so vast that it is more likely that a) we are living in a simulation; b) the amount of energy/time is so big to reach us that it's not worth it; c) we're so insignificant that we have gone undetected. Intelligence exclusively on Earth? Nah
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ELON CLIPS
ELON CLIPS@ElonClipsX·
Elon Musk: Maybe we're the only intelligent species in this galaxy. “I'm somewhat troubled by the Fermi paradox. Why have we not seen any aliens? And it could be because intelligence is incredibly rare and maybe we're the only ones in this galaxy, in which case the intelligence or consciousness is this tiny candle in a vast darkness. And we should do everything possible to ensure the tiny candle does not go out. Being a multiplanet species or making consciousness multiplanetary greatly improves the probable lifespan of civilization. And it's the next step before going to other star systems. Once you at least have two planets, then you've got a forcing function for the improvement of space travel. And that ultimately is what will lead to consciousness expanding to the stars.” Interview at Y Combinator, June 16, 2025
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Rafael Martins
Rafael Martins@RMCtwit·
@bryan_johnson Dude, even I have known this for quite a while. You better check yo-self before you wreck yo-self
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Bryan Johnson
Bryan Johnson@bryan_johnson·
Guys, I’m an idiot. All this time I’ve spent trying not to die, I had toxic turf in my backyard. Artificial turf contains crumb rubber infill made from recycled tires, which leaches chemicals including PFAS, heavy metals, and polycyclic aromatic hydrocarbons. These compounds are linked to hormone disruption, carcinogenicity, and systemic inflammation. I don’t know how I missed it. It makes me question my basic competence in life. What gets me is that I try so hard to survey the world of potential idiocy. Then I find out there’s a monument to idiocy sitting right in front of my face that I was blind to. I’m removing the turf, yet I’m still stuck with this seemingly unsolvable problem of how to not be an idiot.
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Bhanu Teja P
Bhanu Teja P@pbteja1998·
Tried GPT 5.3 Codex with @openclaw, and it's so bad... and it also is giving me the famous... "If you want, I'll now...." thing at the end 😵 Not sure what's the best model to use with @openclaw now... I started a new session and asked that same question to Sonnet, it's response is easily 10x better.
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JC
JC@anakin·
This. Although you might slightly underestimate how widely cowork is used for non-dev work at the enterprise level. The real fumble was not recruiting Peter first. Instead, their ego made them do poor decisions, starting with the ClawdBot IP drama and everything went downhill after that. And now they turned against their ideal customers so they don’t enable their main competitor in the process. OpenAI made one of the smartest plays of the decade.
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kitze
kitze@thekitze·
bantrhopic's ONLY value is to be useful to devs no real people use it for chat it will never be as mainstream as chatgpt it will never be baked in as gemini it doesn't even have voice/video calls it doesn't have image generation and what the idiots are ACTIVELY doing is alienating developers no open source, no open access to their harness just incredible leadership
kitze tweet media
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Tech Layoff Tracker
Tech Layoff Tracker@TechLayoffLover·
Had drinks with 30 CTOs last night at an off-the-record gathering in Palo Alto Every single one showed me the same internal PowerPoint slide "2026 AI Headcount Targets: Path to 70% Cost Reduction" The numbers will make you physically sick Fintech CTO planning to cut 280-person engineering org down to 43 "AI orchestrators" by September. Same product roadmap. Same delivery expectations. Healthcare CTO already eliminated his entire manual QA department. 67 people. Replaced with 3 senior engineers running autonomous testing agents that ship code directly to production. SaaS CTO walked me through his "human depreciation timeline": 340 engineers today, 89 planned for 2027. Customer support going from 120 humans to 12 "escalation specialists" managing AI conversations. The most chilling part: they're all using the exact same consulting deck from McKinsey called "The 30% Organization" One CTO literally said "hiring humans for code is like hiring horses for transportation" Another showed me Slack screenshots where his L7s are asking if they should train their replacements The consensus was unanimous: if you can't manage 10 AI agents by Christmas, you're not making it to New Year's Every single one of them is planning to announce these cuts as "AI transformation success stories" While their stock options vest at record highs built on the backs of workers they're about to execute The future of engineering is 3 humans with 50 AI agents in a WeWork somewhere while 500 families lose their homes
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Alejo
Alejo@work_____·
Bros openclaw without Claude is shit. I can tell you bc for 2 months I’ve tried OpenAI $200 and Claude $200 subs. OpenAI is the bitch of Claude. OpenAI is good to do some cleaning and smol cooking and that’s it. Important vibe coding is for Claude and Claude only.
Peter Steinberger 🦞@steipete

@NoahEpstein_ models auth login --provider anthropic --method cli --set-default

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Rafael Martins
Rafael Martins@RMCtwit·
@philkellr Sorry to hear about that, but I simply don't have that kind of time and disposition to fix broken things. I prefer to go slow and build it step by step making sure I lay proper foundations before going all in.
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Philipp Keller
Philipp Keller@philkellr·
I'm tired of OpenClaw Every 2-3 days I have a major moment which I show to my friends: "look what AI agents can do", but then the other 90% is pure frustration and me cursing at my own AI agent for which I spent hours choosing a beautiful name and profile picture. I was fun at start: I added telegram, added voice input, then adding skills even with just voice prompting was a bliss. Then dementia hit. Facts from 48+ hours ago were forgotten. I installed a 3 level memory system. It felt like a huge hack, it barely works, I encounter bugs every day which I'm fixing. Then it breaks with every update. Not all of it, but little things. The WhatsApp integration is just insanity. After putting in every markdown file that it shouldn't reply to my friends (IN CAPITAL LETTERS) it happily started to chat with my wife and my goddaughter. And from today even claude subscription stops working. I feel like a failure! I see all the success stories left and right, YT vids and blog posts "I got it to work and here's what the AI agent does for me", and for me I'm still spending 5x the time fixing my agent than just doing the stuff by hand 🤷
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Layton Gott
Layton Gott@Layton_Gott·
Learning to manually code in 2026 is like memorizing every road in the country the year GPS came out. By the time you master it, nobody will need it.
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DCODER ➜ dcoder.io
DCODER ➜ dcoder.io@dcoderio·
claude max custa R$500/mês. o plano de $100 o cara pagou, usou 2 horas e acabou a sessão. a anthropic confirmou que os limites ficam mais apertados em horário de pico. teve até bug de cache que drenou uso mais rápido a conta: - R$500/mês ÷ 2h por dia = R$250/hora - um dev senior cobra menos que isso - o dev senior não bebe muita água a gente ta pagando preço de consultoria enterprise por uma ferramenta que pode travar no meio do refactor. e a única resposta oficial é "usar fora do horário de pico"
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Mia
Mia@Mia_ai_fandom·
@UltraLinx the mobile tools thing is genuinely interesting but also feels like a solution looking for a problem half the time. curious how many people actually stay in mobile for figma reviews vs just switching to desktop after 30 seconds
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Rafael Martins
Rafael Martins@RMCtwit·
@benkingfm @bcherny @UltraLinx Nothing that I have seen Anthropic release works completely in the first try. Take Claude in Chrome, for instance. 2.9 to 2.7 rating drop on Chrome Web Store in one month. And that's out of five. And Claude Cowork actually uses it.
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Ben King
Ben King@benkingfm·
@bcherny @UltraLinx This is extremely frustrating. Nothing works properly. Why release hundreds of features when the cloud sessions are still completely unreliable and unusable for work?
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