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The opposite of knowledge is not ignorance. I type fast. Years of specific hand positions, now firing without thought. I learned, recently, that if I want to type significantly faster, I cannot simply practice more. My lack of speed comes from sub-optimal finger movements that have become reflexive. I have to get slower first. I have to rewire the motor patterns before I can reach something mathematically more optimal. This is how skill works when your scheme is […]

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How can you get a language model to reason in a task it natively struggles with? We study how reasoning evolves in a language model — from supervised fine-tuning (SFT) to reinforcement learning (RL) — by analyzing how a set of theoretically-inspired datasets impacts language model performance in chess. We find that fine-tuning a model to directly predict the best move leads to effective RL and the strongest downstream performance — however, the RL step elicits unfaithful reasoning […]

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What Healthy On-Call Looks Like Incident response gets most of the attention, but teams rarely measure the human cost of on-call with the same rigor they apply to incidents. Phone charged. Laptop by my bed. The distinctive PagerDuty alarm goes off in the middle of the night, and the process begins. I sit up, open my screen to a burst of blinding light, and try to figure out: is this transient, or is something actually broken? I pull […]

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There’s a strange thing happening in markets right now. The S&P 500 is down. Macro uncertainty is up. Crypto majors are choppy. And yet — on-chain RWA markets are printing new records almost every week. The tokenized real-world asset market exceeded $36 billion (excluding stablecoins) by late 2025. A growth of over 2,200% since 2020. More importantly, that growth isn’t happening despite the macro storm. It’s happening because of it. The Macro Logic Nobody’s Talking About When traditional […]

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Welcome to HackerNoon’s Meet the Writer Interview series, where we learn a bit more about the contributors that have written some of our favorite stories. So let’s start! Tell us a bit about yourself. For example, name, profession, and personal interests. My name is Marius Eugen Vomir. I’m from Romania, and I created Smart Home Cinema, a local-first voice-controlled movie system for Windows. I’m interested in technology that removes everyday friction in a simple and reliable way. Most […]

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We propose ScalarFedLQR, a communication-efficient federated algorithm for model-free learning of a common policy in linear quadratic regulator (LQR) control of heterogeneous agents. The method builds on a decomposed projected gradient mechanism, in which each agent communicates only a scalar projection of a local zeroth-order gradient estimate. The server aggregates these scalar messages to reconstruct a global descent direction, reducing per-agent uplink communication from O(d) to O(1), independent of the policy dimension. Crucially, the projection-induced approximation error diminishes […]

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Metal additive manufacturing (AM) enables the fabrication of safety-critical components, but reliable quality assurance depends on high-fidelity sensor streams containing proprietary process information, limiting collaborative data sharing. Existing defect-detection models typically treat melt-pool observations as independent samples, ignoring layer-wise physical couplings. Moreover, conventional privacy-preserving techniques, particularly Local Differential Privacy (LDP), lead to severe utility degradation because they inject uniform noise across all feature dimensions. To address these interrelated challenges, we propose FI-LDP-HGAT. This computational framework combines two methodological […]

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