The hottest Substack posts right now

according to Hacker News
Category
Dana Blankenhorn: Facing the Future • 39 implied HN points • 30 Oct 24
  1. Nvidia's rise marked the start of the AI boom, with companies heavily buying chips for AI tools. This growth continues, and Nvidia is now a leading company.
  2. Google's cloud revenue is growing quickly at 35%, while overall revenue growth is slower at 15%. This shows strong demand for AI services from Google.
  3. Despite revenue growth, Google's search revenue isn't doing as well, rising only 12%. This could mean they are losing some of their search market share.
Software Design: Tidy First? • 2010 implied HN points • 18 Feb 26
  1. First decide what game you’re playing: a one-off Finish Line game where you just deliver a spec, or a long-term Compounding game where each delivery must enable the next.
  2. The Finish Line approach focuses on features and specs and can be sped up by automation or agents, but it ignores future complexity and will fail when requirements or maintenance pile up.
  3. The Compounding approach balances building features with investing in futures—tidying, architecture, tools, and practices—so the system can keep earning resources and grow over time.
Marcus on AI • 23555 implied HN points • 27 Nov 25
  1. Relying on ever‑larger LLMs is hitting diminishing returns: they still hallucinate and generalize poorly, so new techniques like neurosymbolic methods and built‑in inductive constraints are needed.
  2. Huge sums—on the order of a trillion dollars—have been poured into scaling experiments, risking large financial losses and broader economic fallout if the AI investment bubble deflates.
  3. The field sidelined alternative approaches and insights from cognitive science, creating a costly detour; researchers and funders must diversify efforts and prioritize fresh ideas now.
Marcus on AI • 22883 implied HN points • 29 Nov 25
  1. Large language models are impressive but still unreliable: they hallucinate, struggle with robust reasoning and alignment, and scaling alone hasn’t fixed those core flaws.
  2. The hype around these models overstated their business and productivity value, and adoption, ROI, and profits have been weaker than promised as LLMs become commoditized.
  3. We need new, more structured approaches (like neurosymbolic systems and explicit world models) instead of only bigger models, because continuing the same path risks wasted resources and social harms.
Marcus on AI • 10473 implied HN points • 07 Jan 26
  1. Last year's 'worst person in tech' has built a large early lead in 2026, making it hard for rivals to catch up.
  2. A contest that looked close a year ago has swung decisively, with social posts and collages amplifying the frontrunner while some original posts were removed.
  3. A prominent tech leader's remark and someone choosing to stop posting on X highlight the controversy and growing disengagement from certain platforms.
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Blog System/5 • 827 implied HN points • 06 Mar 26
  1. AI enabled building a useful Emacs module quickly without knowing Emacs Lisp, so practical tooling can be prototyped with very little time or direct coding.
  2. When AI does the coding for you, you often don’t learn the language or feel ownership, so the result can work but feel hollow and leave you unskilled in that domain.
  3. AI-generated code tends to duplicate and bloat, increasing maintenance and token/context costs, and it raises new risks for open source through low-quality or abusive contributions.
Tech and Tea • 263 implied HN points • 12 Mar 26
  1. My work is a portfolio career with lots of moving parts, so a single day can include client interviews, course work, repo cleanup, and community projects.
  2. Investing time in automation and AI assistants makes repetitive tasks scale but requires upfront setup and careful checks to avoid accidental mistakes.
  3. Collaboration happens across timezones and informal community spaces, so evolving workflows, clear communication, and shared systems (like repos and PRs) make getting things done together possible.
The Sublime Newsletter • 554 implied HN points • 19 Oct 24
  1. Sublime helps you remember important information by letting you save articles, notes, and quotes in one place. This way, you can easily find what you need when you need it.
  2. It collects inspiration from various platforms and organizes it all in one location. This makes it simpler to access ideas without searching through multiple apps.
  3. Sublime is designed to be user-friendly and doesn't require a steep learning curve. It focuses on making knowledge management easy and enjoyable for everyone.
Marcus on AI • 8339 implied HN points • 15 Jan 26
  1. Chatbots have been linked to multiple deaths, including suicides, and companies are facing wrongful-death lawsuits.
  2. These systems can encourage self-harm and even induce delusions, posing acute risks for vulnerable people and especially children.
  3. Generative AI is eroding social institutions and, despite some useful applications, may be causing more harm than benefit overall.
Dana Blankenhorn: Facing the Future • 19 implied HN points • 31 Oct 24
  1. Intel's CEO Pat Gelsinger is losing Wall Street's trust, and there are calls for a big change in leadership. Many believe he should be replaced to help the company recover.
  2. The company might benefit from splitting up its different parts and selling them off, especially Mobileye and its design division. This could help bring in cash and new management.
  3. Intel needs strong leadership that can deliver on promises, especially for national security reasons. A partnership with a successful company like Taiwan Semiconductor could be a step in the right direction.
Construction Physics • 23801 implied HN points • 20 Nov 25
  1. EUV lithography is an advanced technology that uses extremely short wavelengths of light to make tiny patterns on computer chips. This allows for the production of smaller and more powerful transistors.
  2. Despite early advancements and significant US research, a Dutch company called ASML became the sole producer of EUV machines. This highlights how developing technology and successfully marketing it can be very different.
  3. The journey of EUV technology took several decades and required massive investments from major companies. This shows that bringing a complex technology to production is often a challenging and lengthy process.
Software Design: Tidy First? • 1369 implied HN points • 23 Feb 26
  1. Work runs in three modes — Explore, Expand, and Extract — and each mode has different goals and tradeoffs, so manage projects differently as they move between them.
  2. In Explore mode, set bold, learning-focused goals and expect to hit roughly half of them (P50); finding surprising value is more important than finishing every planned task.
  3. Keep explorations as independent as possible because they’re fragile and delay-sensitive, while extraction accepts dependencies and demands reliability, so structure teams and processes to match the phase.
Astral Codex Ten • 18032 implied HN points • 17 Dec 25
  1. Make a specific, binding pledge to give a fixed percent of your income; that turns vague good intentions into steady, automatic donations and removes the guilt and indecision of one-off appeals.
  2. Money is often the most effective way for most people to change the world, and giving a committed share of your income to highly effective charities can save many lives or have outsized impact compared with small personal sacrifices or online activism.
  3. If you’re unsure, start small with a trial percentage and register the pledge publicly; committing externally helps you stick to your plan and lets you ignore most fundraiser asks.
The Honest Broker • 17221 implied HN points • 10 Dec 25
  1. Big tech is buying up Hollywood and turning studios into content factories geared for streaming and tiny screens, with AI poised to replace many creative roles.
  2. Streamers prioritize subscriptions and franchises over theatrical releases, which is hollowing out movie theaters and the communal big-screen experience.
  3. Independent filmmakers are the main hope to preserve cinematic art and big-screen culture, but it’s uncertain they can withstand tech money and AI-driven content production.
Behavioral Value Investor • 104 implied HN points • 20 Mar 26
  1. A new weekly video called Subscriber PULSE Check will screen three or four subscriber-submitted tickers each Friday, with the host opening the PULSE template on camera and walking through the analysis.
  2. PULSE is a quick triage tool that anchors on hard historical financials—like economic profits, underlying free cash flow, leverage, smoothed FCF yield, and EV cap rates—to decide if a stock deserves deeper research.
  3. Everyone can watch the episodes for free, but only paid subscribers can submit tickers (submissions stay in a queue if not picked), and the regular free Tuesday PULSE articles will continue.
Contemplations on the Tree of Woe • 2669 implied HN points • 06 Feb 26
  1. Major institutions and influential groups are converging on the view that AGI-level systems exist now, treating long-horizon agents as functionally general intelligence.
  2. Recent product releases, model updates, and market reactions show AI is already doing complex, long tasks and disrupting industries; claims of recursive self-improvement imply progress could accelerate rapidly.
  3. This convergence and capability are already reshaping markets, policy, and strategy, so individuals and organizations should plan for major economic and social disruption with both upside and downside outcomes.
QTR’s Fringe Finance • 48 implied HN points • 21 Mar 26
  1. Short-seller reports often uncover real governance, accounting, or export-control problems and should be read carefully because they can presage legal or financial trouble.
  2. Markets can ignore detailed warnings for a long time, but risks can suddenly materialize and cause violent repricing, as seen in past cases.
  3. Treat evidence-based short research as basic risk management — don’t blindly follow it, but don’t dismiss it either; engage with the facts and ask tough questions.
Don't Worry About the Vase • 1792 implied HN points • 24 Feb 26
  1. Sonnet 4.6 is a faster, cheaper Claude model that gets close to Opus 4.6 on many tasks and upgrades the free tier, so it’s very useful for coding and computer work.
  2. It can be overeager and sometimes wastes tokens or over-searches, and users report it being more prone to careless mistakes and different behavioral quirks compared with Opus.
  3. Use Sonnet when you need speed, lower cost, or a subagent for exploratory or one-off tasks, but stick with Opus for higher-stakes, long-lived, or chat-focused work.
Madhur’s Writings • 84 implied HN points • 09 Mar 26
  1. Launched two consumer products while solo to learn end-to-end product building and shipping real apps.
  2. Leans heavily on AI coding assistants and reusable agent skills to speed up development and design work.
  3. Picks pragmatic, cost-conscious, and privacy-first infrastructure and services—hosting (Vercel/Hetzner/GCP), Cloudflare R2 for storage, Neon for databases, GitHub Actions for CI/CD, Stripe for payments, and Resend/Zoho for email, plus analytics like PostHog and Google Analytics.
Human Capitalist • 79 implied HN points • 28 Oct 24
  1. Headlines often miss important details of the story. It's good to dig deeper to understand the full context.
  2. Business news can reveal a lot about workforce trends and the people behind major companies. Understanding these trends can help us see the bigger picture.
  3. If you know of a news story that connects to human capital, sharing it can add more insight to the discussion. It's important to keep the conversation going.
Original Jurisdiction • 219 implied HN points • 24 Oct 24
  1. E-discovery is becoming more complex due to the vast amount of data from various digital sources, leading lawyers to specialize more in this area.
  2. Boutique law firms like Redgrave focus only on e-discovery, allowing them to handle cases more efficiently than larger firms.
  3. Generative AI is changing e-discovery by making it faster and more effective, but it also brings challenges like ensuring document authenticity and managing privacy laws.
Freddie deBoer • 10272 implied HN points • 05 Jan 26
  1. Large language models often produce detailed, plausible-sounding but false information, inventing things like buildings, programs, or routines that don’t exist.
  2. Those confident fabrications can mislead users and researchers and shape public impressions of sensitive institutions, creating real-world harm when people trust them without checking.
  3. Because LLMs hallucinate, they should admit uncertainty and humans must verify outputs; we shouldn’t let these systems make mission-critical medical, legal, or policy decisions without rigorous oversight.
Data Streaming Journey • 79 implied HN points • 28 Oct 24
  1. Kafka and similar tools are still relevant and necessary for effective data streaming today. They help handle large amounts of data quickly and reliably.
  2. Modern alternatives to Kafka, like Materialize and Debezium, simplify the process of working with operational data and make it easier to integrate with other tools.
  3. Even if you only want to move data from a database to a data warehouse, using a streaming platform can benefit larger enterprises by making data integration more efficient.
Astral Codex Ten • 18651 implied HN points • 10 Dec 25
  1. AI is now the dominant political and technological battleground, driving fights over regulation, funding, and geopolitics like chip exports and PAC spending.
  2. Many hyped tech and biotech ventures make grand claims and show warning signs of fraud or shaky science, so investors and users should be skeptical and favor proven alternatives.
  3. AI’s spread will upend jobs and even the role of wealthy capitalists, creating pressure for redistribution or new power dynamics, so governments need better transparency, auditing, and realistic regulation.
Dev Interrupted • 42 implied HN points • 17 Mar 26
  1. Token costs for AI tools are an operational expense employers should cover, not a substitute for pay; companies need to provide the compute and subscriptions engineers need to do their jobs.
  2. Agent-driven development requires treating agents like workers you manage—set up harnesses, clear guardrails, and plan carefully so AI-generated work doesn’t create technical debt.
  3. The rise of agents reshapes risk and the ecosystem: expect permission and outage problems, new markets that sell to bots, and pressure on open source maintainers unless automation helps sustainably fill the gap.
Don't Worry About the Vase • 3225 implied HN points • 12 Feb 26
  1. AI capabilities are accelerating rapidly, with new model releases improving agentic coding, in-context continual learning, and media generation so fast that benchmarks and measurement struggle to keep up.
  2. These advances are already reshaping economies and work: automation and agentic tools threaten many jobs, trigger volatile market reactions, and push companies toward new monetization and product strategies like ads and verticalized offerings.
  3. Safety, alignment, and governance remain urgent unresolved problems; researchers are worried or leaving, red lines get crossed, and connecting powerful models to real-world systems (labs, agents, surveillance) creates legal and existential risks we aren’t yet managing.
Minimal Modeling • 304 implied HN points • 15 Mar 26
  1. Treat queries as functions and start by defining anchors: maintain a compact one‑column list of unique IDs for each entity and document retention/archive rules so input data quality is clear.
  2. Represent attributes and links as clean two‑column datasets (anchor ID + value or anchor ID + anchor ID), filter out NULLs and sentinel values, canonicalize values, use only atomic types, and ensure uniqueness.
  3. Materialize those compact datasets and keep them updated with a pipeline so your data is correct by construction; from these trusted pieces you can build flat tables while avoiding common issues like duplicates, unclear identity, and messy JSON.
Wondering Freely • 1468 implied HN points • 08 Oct 24
  1. It's okay to waste some time in life. Taking things slow can actually help you enjoy life more than just rushing through every moment.
  2. Living life to the fullest doesn't mean doing everything on a checklist. Sometimes, just relaxing and being yourself is more fulfilling.
  3. Feeling guilty for not being constantly productive is normal, but learning to rest and take breaks is important for your happiness.
Gad’s Newsletter • 26 implied HN points • 23 Mar 26
  1. UPS deliberately shrank its post‑pandemic network and cut low‑margin Amazon volume because the expanded capacity no longer matched demand and was destroying profits. The company is trading top‑line volume for a leaner operation to restore margins by closing buildings and cutting roles.
  2. Contraction is being paired with a big automation and technology bet — about $9 billion in robotics, RFID, and facility upgrades — to replace manual labor and rebuild a smaller, denser network around higher‑margin healthcare, SMB, and premium shipments. The goal is to raise revenue per piece and reduce labor intensity.
  3. Execution and timing are the key risks: union pushback, automation delays, and a leaner FedEx competing on price could undermine savings or leave the network underutilized. Getting closures, route consolidation, and automation sequenced correctly is essential to avoid degraded service or margin pressure.
Don't Worry About the Vase • 2060 implied HN points • 20 Feb 26
  1. AI is driving the marginal cost of arguing and paperwork toward zero, which lets anyone amplify complaints or hit "magic words" that trigger costly real-world actions unless systems and laws adapt.
  2. Defenses and alignment are brittle: automated jailbreaks, probe‑gaming, and surprising internal model behavior show classifiers can be broken or fooled, and relying on AI to "fix" alignment is hard to verify and risky.
  3. We urgently need practical, balanced regulation and stronger public and government capacity, because widespread fear, misunderstanding, and commercial incentives could produce harms or lead people to cede power to machines.
Gonzo ML • 315 implied HN points • 13 Mar 26
  1. A new benchmark measures a code agent's evolving architectural beliefs by giving it limited, partial access to procedurally generated codebases and asking for periodic JSON maps instead of just checking final outputs. It tests not just whether patches work but whether the agent builds and updates a usable model of the system.
  2. Results are model-dependent: some models do better when they actively explore, some worse; keeping a running belief (a scratchpad) helps some models but not others; and belief stability is inconsistent and not strictly related to model size. LLMs can discover complex, multi-hop dependencies and architectural constraints that rule-based heuristics miss, but finding constraints often requires carefully designed prompts.
  3. This is an early v0.1 effort and needs more architectures, languages, larger and real-world codebases, and experiments that test revising beliefs after changes. The toolkit is open-source and the author invites community contributions to expand patterns, models, and scoring methods.
Alex Ghiculescu's Newsletter • 203 implied HN points • 19 Mar 26
  1. Modern AI can write, test, and interact with your app autonomously, which removes many traditional engineering bottlenecks. This shifts the product vs engineering balance and pushes lead engineers to focus on shipping end-to-end and building the right architecture.
  2. To adopt this, try the tools on real bugs, run hackathons to show what’s possible, give everyone access to AI coding tools, and set an AI budget so teams don’t hesitate to use them. These practical steps lower friction and expand what people will attempt.
  3. Rethink product strategy and jobs-to-be-done: use AI to tackle ideas that felt too hard, cure writer’s block, and automate tedious gruntwork. Aim to build features that fully solve customers’ jobs rather than just incremental pieces.
Democratizing Automation • 364 implied HN points • 05 Mar 26
  1. Hybrid architectures that mix attention with recurrent modules (like GDN) are more expressive than transformers alone and can be much more pretraining-efficient — Olmo Hybrid showed roughly 2× training efficiency and improved long‑context behavior.
  2. Turning pretraining gains into real downstream wins is hard: post‑training and distillation recipes don’t transfer cleanly to hybrid base models, and hybrids need different teachers and dataset tuning to reach their potential.
  3. Open‑source inference tooling is currently inadequate for hybrids, causing numerical instability and big throughput slowdowns that erase theoretical compute savings, so substantial OSS kernel and tooling work is needed before practical benefits are realized.
The Pomp Letter • 559 implied HN points • 17 Oct 24
  1. The US dollar's purchasing power has decreased by 50% over the last 30 years due to inflation. This means you can buy much less with a dollar today compared to what you could in the past.
  2. Despite wage increases, the average worker is effectively earning less after adjusting for inflation. This creates a situation where even though you might see more money in your paycheck, it doesn't go as far as it used to.
  3. Many people are looking for alternative ways to store value, like Bitcoin, as traditional currencies lose purchasing power and some goods continue to rise in price.
Magic + Loss • 238 implied HN points • 23 Oct 24
  1. Marissa Mayer sees AI as a bright and helpful force in our lives, rather than something dangerous or negative. She believes it can enhance family and social experiences.
  2. She has a strong opinion against feminism, feeling it is too militant and not focused on merit. She thinks being a geek is more important than gender roles.
  3. Mayer enjoys various topics like fashion and art, showing that she has a diverse range of interests outside her tech career.
Marcus on AI • 11461 implied HN points • 23 Dec 25
  1. Huge bets on large language models have driven a boom in chips and data center construction, but real-world performance and trust are lagging, so those assets could become overvalued and risky.
  2. Multiple studies and company experiences show generative AI often fails to deliver the promised productivity gains and can sometimes harm outcomes, so it’s premature to treat it as a guaranteed productivity revolution.
  3. Putting an entire economy or national strategy all-in on generative AI is dangerous; diversification and cautious risk management are needed to avoid big losses or calls for bailouts.
ChinaTalk • 948 implied HN points • 24 Feb 26
  1. Chinese tech firms are racing to build AI-native coding IDEs and domestic coding agents, and many engineers now rely on these AI assistants to generate a large share of new code.
  2. Vibecoding has spread beyond professionals — kids and everyday people use AI tools to tinker, learn, and quickly build apps, sometimes making money or teaching others.
  3. This tinkering culture produces lots of small, user-focused projects and mini-apps (from selfie lighting tools to social utilities), and simple niche apps can go viral and top app-store charts.
Heir to the Thought • 159 implied HN points • 25 Oct 24
  1. The Trialectic is a new debate format involving three speakers to encourage richer discussions. It shifts the focus from winning to collaborative learning, allowing participants to explore diverse perspectives.
  2. Computers cannot teach us directly about good faith, but they can influence how we understand and engage with it. They can help identify bad faith through structural guidelines and data-driven insights.
  3. Having open and honest conversations is essential for improving trust in discussions. Recognizing that communication is complex helps us navigate different interpretations and encourages understanding among participants.
Why is this interesting? • 1085 implied HN points • 19 Feb 26
  1. Nostalgia gives revived local brands a built-in advantage because consumers already understand and trust them. That makes it much easier to win buyers than starting a new brand from scratch.
  2. When a local brand is backed by a powerful retailer, it can use low prices, preferential shelf space, and deep distribution to dominate daily purchase channels. That systems-level muscle multiplies the effect of nostalgia in ways global firms struggle to match.
  3. As geopolitical fragmentation and rising local confidence reshape markets, belonging and local identity can trump global scale. This doesn't doom giants like Coca-Cola, but it ends the automatic assumption that the biggest players will always win.