Professor @feup_porto and researcher @inesctec. Distributed Systems and Data. Co-creator of CRDTs. Still searching for unknown unknowns

Oporto, Portugal
🫡 Until today I always thought this emoji was half a rabbit with the ears down.
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AI doesn’t create slop, laziness creates slop. I haven’t written a single line of code in a year. Yet I created & deployed SuperSonic, Sonic Pi v5 & Sonic Pi Web with no issues. If you’re incredibly disciplined & still have a learning mindset you can engineer amazing things.
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My batch of papers to review include some that declare extensive AI use. Disclosure is the honest way. Not penalizing them if they read well and have sound results. Seeing this from the other side.
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.@DameWendyDBE (@sotonWSI), Alan Kay, @GaryMarcus, @ACM_President, and other experts explain why the 75-year-old Turing Test is a poor measure of today's AI #systems, in "Why It’s Time to Sunset the Turing Test," by @PaulMarks12. bit.ly/4qzPkbM
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GPT-6.1 is a good model. And it’s unbelievably efficient. Included in all paid plans and on the API today.
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GPT-6.1 Sol: near-Astra intelligence for a fifth of the price. It’s the most cost-efficient model for its performance available today.
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Nature: "We find that students learn significantly more in less time when using the AI tutor, compared with the in-class active learning. They also feel more engaged and more motivated. These findings offer empirical evidence for the efficacy of a widely accessible AI-powered pedagogy in significantly enhancing learning outcomes, presenting a compelling case for its broad adoption in learning environments." This is why I've been building @ChapterPal, where everyone can learn from the best and never feel stuck. nature.com/articles/s41598-0…
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This is to my point about compression being inevitable as human knowledge is too small for what we are building. As well, humans are too redundant in their wants needs and questions. AI-generated content will clearly contain propagation errors just like human history of knowledge does. Only LLMs will iterate those propagation errors infinitely faster with less ability to self- correct, for want of understanding. This gets to Ballard’s test. LLMs cannot attain understanding (AGI) as understanding cannot exist unless reason first exists without language. A likely impossibility for a language model. Research on this is already focused on getting around this in some way. Though many also have not yet conceded the point.
ChatGPT has now a big problem. Researchers at Oxford and Cambridge exposed a massive threat to large language models.” They call it “model collapse." Internet ecosystem is rapidly changing, and generative AI will soon contribute much of the text found online. This forces us to consider what happens to future iterations like gpt-n when they are trained on data scraped from the web that was already generated by an llm. According to the research, indiscriminately using model-generated content in training causes "irreversible defects" in the resulting ai. the model loses the "tails of the original content distribution." in other words, it begins to forget the creative, fringe, and unique nuances of actual human writing, collapsing into a repetitive echo chamber. This isn't just a chatgpt issue.. the researchers built theoretical intuition showing this collapse is ubiquitous across learned generative models, occurring in large language models as well as in variational autoencoders and gaussian mixture models. Tech companies rely on scraping the internet for large-scale data to build smarter models. However, the paper warns that if we want to sustain the benefits of training on web data, model collapse must be taken seriously. Ultimate takeaway? data collected from genuine human interactions is going to become increasingly valuable in a web filled with ai content.
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After four revisions, we had the good news that the "The Naive–Power Law Blend as a Robust Baseline for Bitcoin Price Forecasting" paper was accepted for publication in Springer-Nature Digital Finance Journal. The reviewers and editorial team were fundamental to improving the depth of the evaluation that supports the results. Joint work with Daniel Tinoco.
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The purpose of the AI industry should be to produce tools that, in the human hand, will improve human prosperity and welfare. It should not be to create a "successor species" to the human race. Entertaining such a thought makes you, de facto, the enemy of all present and future humans.
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SpecForge. Coming soon!
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Once you understand that the world is full of highly neurotic people who need a doom's day scenario to validate their emotions, it all makes much more sense: Malthusian starvation, pandemic, climate, and now AI. I wish we still had "the devil" to play this part.
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Banger
resilience is the art of not converting pain into suffering.
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Why don’t OSS projects post specs and prompts for work they want done? I have 3 token resets that expire in 5 days. That’s a lot of compute I could donate.
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one of my favorite clips ever
What if the government attacks Bitcoin? Here is the answer.
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This is such a beautiful and positive way to express what is happening. Or already happened to be fair. I haven’t written code manually since November last year I think. Using my code editor for keeping notes and look at code when I need more context than a diff. I loved writing code by hand. But what I always loved more is creating things and imagining how a product should work. It took me a little bit of time to let go. But now I have a lot more freedom and time to learn, experiment and grow. I don’t mind that kind of future. I have to check the whole keynote with @dhh but what I’ve seen so far here on X sounds pretty damn good to me.
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Over its entire 53-year history, 2,199 papers have been published at @poplconf. Apparently 7,900 papers were just accepted at NeurIPS '26 🤯
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