The hottest Substack posts right now

according to Hacker News
Category
Obsolete Sony’s Newsletter • 119 implied HN points • 08 Aug 24
  1. Sony was a key player in creating the MSX standard for home computers in the 1980s. This platform aimed to unify computer use and consumer electronics.
  2. Sony's MSX computers had creative designs and various models, but they faced tough competition and technical limits.
  3. Although they didn't change the home computing landscape as hoped, these Sony computers are still cool examples of 1980s tech innovation.
First 1000 • 1592 implied HN points • 16 Jan 24
  1. Mashups can create new names by merging two words together.
  2. Play on words involves creatively using spelled terms to describe a product.
  3. Paying tribute by naming a company after someone or something significant adds meaning.
lcamtuf’s thing • 4081 implied HN points • 27 Dec 24
  1. The hydraulic analogy, which compares electrical circuits to water systems, is often misleading. It can create confusion, especially when learning complex components like semiconductors.
  2. While analogies can aid in understanding, they need to remain accurate as you learn more advanced concepts. The hydraulic analogy can break down and lead to misunderstandings.
  3. When students encounter flaws in the hydraulic analogy, it may cause them to forget the basics and start over, making the learning process harder than it needs to be.
Philosophy bear • 128 implied HN points • 18 Jan 26
  1. Human political life has swung between small egalitarian coalitions and large hierarchical states, then moved toward mass democracy, and now faces a radical fourth shift where superintelligence could make traditional politics obsolete.
  2. How superintelligence is distributed matters: if it’s widely available many core political and economic institutions (labour, representation, markets, propaganda) would collapse into near‑instant direct coordination, but if it’s controlled by powerful AIs or a tiny elite human politics becomes irrelevant because power is exercised without democratic mediation.
  3. The immediate political priority is shaping who builds and controls AGI and what values it carries — protecting broad human power, preventing permanent lock‑ins, and embedding compassion and democracy; if control proves impossible, stopping or delaying AGI becomes the urgent task.
ART⋂CODE • 19 implied HN points • 28 Feb 26
  1. When digital interfaces are always present they shape how we express ourselves and push us to fit into their limited data formats.
  2. Body-tracking systems turn rich human movement into narrow data abstractions, and the feedback they give makes people alter their gestures to suit the system rather than move freely.
  3. AI can learn emergent, more human-friendly representations that free expression from designer presets, but it also raises surveillance and power risks, so people should build, own, and design supportive contexts for authentic use.
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David Friedman’s Substack • 170 implied HN points • 07 Jan 26
  1. When countries use the same money, trade deficits cause specie (gold) to flow and change domestic price levels, and those price changes naturally push trade back toward balance.
  2. Capital flows can offset trade imbalances, so a country can run a persistent trade deficit if it attracts enough foreign investment; equilibrium is reached when a country’s trade deficit equals its net capital inflow.
  3. In a multi-currency world exchange rates adjust quickly while price-level changes under a single currency affect debtors and creditors, and governments or central banks can temporarily intervene with reserves or money supply but cannot sustain those interventions forever.
David Friedman’s Substack • 422 implied HN points • 17 Nov 25
  1. Being rich today is much better than being poor, but even those with less money still enjoy comforts that were unimaginable in medieval times.
  2. People today face risks when choosing careers, but the rewards are not as drastically different as they were in the past, which affects how much they are willing to gamble for higher income.
  3. Income inequality exists, but unlike in medieval times where the extremes were much larger, modern income differences lead to different levels of competition for high-paying jobs.
Startup Business Tips 🚀 • 34 implied HN points • 15 Feb 26
  1. Know exactly who to sell to — document a five‑point ICP and a list of disqualifiers (ANTI‑ICP) and enforce it so your pipeline stops getting noisy.
  2. Pick one clear positioning anchor (product category or use case) and make it consistent across homepage, LinkedIn, demos, and sales materials; pause weak channels and focus deeply on the strongest one.
  3. Tighten execution with simple processes and metrics — add source attribution, track lost reasons, set hard open/close deal criteria, review demo recordings, and actively use case studies and referrals.
Diane Francis • 1378 implied HN points • 05 Feb 24
  1. China's real estate bubble has created massive debt, making it harder for local governments to provide services. Many places have empty buildings while local debts soar.
  2. The Belt and Road Initiative has turned into a huge financial burden for China, with many countries unable to repay the loans. This has led to China becoming the biggest debt collector globally.
  3. China's gambling-like approach to its economy is hurting its growth and reputation. With a lot of speculation and risk-taking, its future outlook looks uncertain.
Yet Another Value Blog • 1631 implied HN points • 11 Jan 24
  1. Rental car companies are currently trading at low multiples, making them a potentially cheap investment.
  2. Despite the persuasive bear case, the bull case for rental car companies includes aggressive capital returns to shareholders and potential for sustained earnings.
  3. Structural improvements in the rental car industry, such as consolidation and disciplined supply, could support profitability even if current high levels are not completely sustainable.
Chartbook • 1287 implied HN points • 21 Jul 25
  1. The idea of being a 'nobody' can unlock personal freedom and help us navigate social pressures. It suggests that underneath our identities, we all share a common core of existence.
  2. Using technology like DeepSeek can assist in understanding and translating complex texts, opening up access to different ideas. This tool not only helps with translation but also sparks new conversations.
  3. Embracing the concept of 'nobody-ness' can lead to a deeper understanding of oneself and the world, highlighting the importance of self-awareness and critical thinking. It encourages us to look beyond the labels society puts on us.
Where's Your Ed At • 13056 implied HN points • 26 Oct 23
  1. Elon Musk is perceived as a modern-day hustler, skilled at manipulating media and markets without creating tangible value.
  2. Musk's success lies in picking companies and products that promise eternal growth, even if the reality doesn't align with the hype.
  3. The acquisitions of SolarCity, Twitter, and the Cybertruck showcase Musk playing outside the odds, relying on emotion, and making risky bets.
TheSequence • 112 implied HN points • 25 Jan 26
  1. Serving models (inference) is now the main battleground, drawing huge funding as startups race to make model serving boring, reliable, and infinitely scalable.
  2. New kernel-level tricks are cutting recomputation and memory waste: RadixAttention reuses KV cache blocks like an LRU to avoid recomputing prefixes, and PagedAttention pages KV memory so GPUs can pack many more requests without VRAM fragmentation.
  3. Latency and per-turn cost now define product quality, causing a split in the stack between orchestration/hardware layers that manage scale and kernel teams that squeeze every FLOP to make models fast and cheap.
Rings of Saturn • 87 implied HN points • 28 Jan 26
  1. The same game uses completely different cheat systems on each platform, so the N64, Dreamcast, and PlayStation versions each have unique ways to unlock hidden features and content.
  2. On Dreamcast, pressing face buttons on the title screen fills a buffer and matching specific eight-button sequences triggers secrets; these unlock a Pong mini-game, extra goofy cars, a free-flight camera, five turbo boosts, the staff roll, and one sequence that appears to do nothing.
  3. On PlayStation, two distinct eight-button title-screen sequences give big rewards: one sets your Roadster Trophy cash to ten million and the other unlocks Category A/B cars, and entering both also marks several championship trophies as completed.
Marcus on AI • 3161 implied HN points • 17 Feb 25
  1. AlphaGeometry2 is a specialized AI designed specifically for solving tough geometry problems, unlike general chatbots that tackle various types of questions. This means it's really good at what it was built for, but not much else.
  2. The system's impressive 84% success rate comes with a catch: it only achieves this after converting problems into a special math format first. Without this initial help, the success rate drops significantly.
  3. While AlphaGeometry2 shows promising advancements in AI problem-solving, it still struggles with many basic geometry concepts, highlighting that there's a long way to go before it can match high school students' understanding in geometry.
Kyla’s Newsletter • 121 implied HN points • 09 Jan 26
  1. The Fed is learning from the 1970s vs 1990s: inflation expectations and productivity trends matter. AI could boost productivity but that’s uncertain, so policy needs to be cautious and nimble.
  2. Persistent uncertainty and a gap between sentiment and official data are major issues. Negative news cycles make people feel worse even when jobs, wages, and spending remain fairly strong.
  3. The economy has been surprisingly resilient but growth is narrow, driven by AI investment and healthcare jobs, which creates concentration risks linked to the stock market and hiring. Ground-level signals like cranes and parking lots are useful to check what businesses are actually doing.
Behavioral Value Investor • 14 implied HN points • 06 Mar 26
  1. Forecasting is hard but unavoidable; to earn excess returns you must make a forecast that disagrees with the expectations already priced into a stock.
  2. Your mental game matters — strive to operate in your A‑game rather than your C‑game, learn how to detect when you’ve slipped, identify the causes, and develop routines to correct course.
  3. Deliberate practice and community feedback help you improve: use case studies, complete assignments, share your answers, and engage with others to sharpen your investing skills.
Jacob’s Tech Tavern • 3936 implied HN points • 30 Dec 24
  1. Swift 6 introduced a new Synchronization framework that includes features like Mutex and Atomics. These help manage how different parts of a program can work together safely.
  2. The new concurrency tools are based on a concept called generic ownership, which is new for Swift 6. This means they have better performance and flexibility.
  3. The article also compares these new low-level features to high-level ones like Actors to see how they perform. This can help developers choose the right tool for their needs.
benn.substack • 1150 implied HN points • 01 Aug 25
  1. Automating analysis is tricky because we can't confirm if the results are accurate without understanding how they were made. This means we often have to trust the source instead of verifying the information ourselves.
  2. AI can create complex spreadsheets or charts but we can't easily check their correctness. Unlike other software, we can’t just test if a chart 'works' without digging deeper into its creation.
  3. In finance, companies are using strategies like buying crypto to boost their stock prices, even if these tactics seem irrational. This shows that sometimes getting attention matters more than the actual business fundamentals.
decodebytes • 87 implied HN points • 19 Jan 26
  1. Saying "I built" used to mean someone had done the hard, iterative work and gained deep understanding.
  2. Today "I built" often just means you described what you wanted and AI produced it, so the person may lack scar tissue or real intuition about how it works.
  3. That shift reduces the credibility and meaning of claiming to have built something and makes genuine craftsmanship harder to recognize amid mass-produced outputs.
Adjacent Possible • 364 implied HN points • 26 Nov 25
  1. The history of peer review shows how a small change in the scientific community shaped the way knowledge is shared for a long time. It's a reminder that even minor adjustments can have big impacts.
  2. With advancements in AI, there's potential for a new way to package and share knowledge that goes beyond what we currently have. This could make accessing and understanding information easier for everyone.
  3. New tools like Deep Research and Google Research notebooks can help us gather and organize information better, allowing for interactive and personalized research experiences. This makes learning more engaging and effective.
next big thing • 37 implied HN points • 12 Feb 26
  1. Greatness exists in distinct layers, and the gap between each level can be enormous — someone who’s great at one level can be thoroughly outclassed by the next.
  2. Many systems follow a power-law pattern where a tiny number of people, companies, or places capture most of the attention, wealth, or returns.
  3. AI, especially models that can help build and improve themselves, is accelerating that concentration, so a small set of firms is likely to pull much farther ahead.
ciamweekly • 62 implied HN points • 02 Feb 26
  1. CIAM comes in seven main flavors (B2E, B2C, B2B2C, B2B2E, B2D, B2G, B2A), each reflecting a different relationship between the product and its users like customers, employees, developers, governments, or agents.
  2. Pick CIAM features based on who your users are: consumer-facing (B2C) systems prioritize smooth UX, social/passwordless logins, and marketing integration, while B2B2C and B2B2E need tenant segmentation, delegated admin tools, and strong federation/provisioning.
  3. Niche CIAM types have special nonfunctional and compliance needs — B2D requires rich APIs and docs, B2G needs government compliance, and B2A demands separate agent identities, different throttling, and a new threat model.
Obsolete Sony’s Newsletter • 119 implied HN points • 07 Aug 24
  1. Sony started the cassette revolution with the TC-100 in 1966, making audio recording and playback easy for everyone.
  2. The Walkman, introduced in 1979, changed how we listen to music by allowing people to carry their favorite tracks wherever they went.
  3. In 1982, Sony launched the first CD player, the CDP-101, which transformed music consumption by introducing digital audio playback.
Nova Terra News • 738 implied HN points • 15 Apr 24
  1. Nova Terra Inc. is focused on creating a sustainable future through innovative building materials like EcoBlox made from lime-stabilized compressed earth blocks.
  2. The founder, Lisa Morey, has a background in earthen masonry and is passionate about infusing technological innovation into traditional building methods.
  3. Acceleration in business growth, pitching to major projects like the Georgia O'Keeffe museum, and receiving positive feedback have energized Lisa Morey and Nova Terra Inc. for a promising future.
Rings of Saturn • 72 implied HN points • 02 Feb 26
  1. Both Saturn shooters, Hyper Duel and Blast Wind, hide a Freeplay mode that you can unlock from the Options/DIP Switch screen by entering a special button sequence. Hyper Duel: hold L+R and press Up, Right, Down, Left, A, Y, C, Start; Blast Wind: hold L+R+A+C+Y and press Up, Left, Down, Right, X, B, Z, Start.
  2. Flipping DIP switch number 5 turns on Freeplay in both games, giving unlimited credits or continues once the cheat sequence is accepted.
  3. Reverse-engineering with the Mednafen debugger and Ghidra shows the games check held-button bits (L+R and extra buttons) and increment a counter for the sequence; when the counter reaches the expected value the code enables the Freeplay option.
lcamtuf’s thing • 4285 implied HN points • 07 Dec 24
  1. Bootstrapping can significantly improve photodiode amplifier performance by minimizing the impact of parasitic capacitance. This helps in amplifying fast-changing signals better.
  2. A voltage follower in the circuit helps keep the photodiode at the same voltage, preventing internal charging and making it act like an ideal current source.
  3. While bootstrapping boosts performance, real-life limitations exist, like bandwidth and impedance, which need to be considered for accurate designs.
Why is this interesting? • 1025 implied HN points • 13 Aug 25
  1. You don't need fancy tricks to learn about AI. Just get a ChatGPT subscription and use it a lot.
  2. Many people underestimate how useful AI can be for their work and creativity. They should give it more effort.
  3. Trust what people say about AI with a grain of salt. Confidence doesn't always mean they know what they're talking about.
atomic14 • 173 implied HN points • 02 Jan 26
  1. Minor assembly or soldering faults—like lifted pads, poorly seated ICs, or cold joints—can cause big failures such as no sound, no USB, or nonworking keys.
  2. Simple bench debugging (microscope inspection, continuity checks) plus basic rework (reflowing solder, nudging parts, retouching pins) can fix many issues, though some damaged boards are only fit for spare parts.
  3. Outsourcing PCB fabrication and partial assembly is fine, but final in‑house assembly and thorough QA are essential to catch subtle manufacturing problems before shipping.
Kristina God's Online Writing Club • 1099 implied HN points • 02 Mar 24
  1. You can make money writing on Medium, but it takes time, effort, and a good strategy. Many writers don't succeed because they rush or lack a clear plan.
  2. Medium has a large potential audience and a payment program that can benefit writers. However, most writers earn less than $100 a month because they don't utilize this platform effectively.
  3. Many new writers quit after a year due to slow growth and unrealistic expectations. It's important to stay committed and focus on improving your writing and promotion strategies.
In My Tribe • 334 implied HN points • 19 Nov 25
  1. New York's economy is shifting away from finance jobs and seeing growth in lower-paying sectors like media and nonprofits. This makes people unhappy as they feel the cost of living is high.
  2. Unbundling is happening in various industries, meaning consumers are now paying directly for what they actually use instead of sharing costs with others. This could lead to higher prices for some services.
  3. Although more families are earning higher incomes now than in the past, young people still feel unhappy. Reasons include high housing costs and the tendency to compare themselves to others who have more.
Market Curve • 100 implied HN points • 26 Jan 26
  1. Make AI agents easy and reliable by hiding RAG and knowledge-graph complexity, connecting across apps, and grounding answers in company data so the system retrieves facts and says “I don’t know” instead of hallucinating.
  2. Get early customers by solving a real internal pain with long free trials and usage-first metrics, use high-touch onboarding and customer advocates to expand pilots into large enterprise deals.
  3. Start in a language-heavy vertical, build deep integrations and reusable agent templates (amplified by influencers), then scale with sales-led motions, bundling features while making security, permissions, and governance core.
Big Technology • 9632 implied HN points • 01 Mar 24
  1. The crisis at Google, involving controversial AI outputs, highlights significant organizational dysfunction and lack of clear accountability.
  2. The focus on culture war narratives in analyzing the crisis may overlook deeper issues within Google's operations.
  3. Google's handling of the crisis with its Gemini tool demonstrated the company's struggle with transparency and the need for significant organizational changes.
Don't Worry About the Vase • 1299 implied HN points • 23 Jul 25
  1. OpenAI's ChatGPT Agent can now perform tasks like managing your calendar or shopping for groceries. It uses a combination of web browsing, research skills, and conversational abilities to help users with more complex requests.
  2. Although the ChatGPT Agent shows promise and can do some tasks well, like spreadsheet work, it still faces limitations. For now, it feels more like a helpful assistant rather than a full replacement for humans in many tasks.
  3. Safety is a top priority with the new capabilities of the ChatGPT Agent. OpenAI is taking steps to prevent misuse and ensure that the technology is used responsibly, especially in sensitive areas like biology and chemistry.
Donkeyspace • 9 implied HN points • 02 Mar 26
  1. There are surprisingly few compelling games built around generative AI; early experiments exist but none have delivered the kind of mind‑blowing, new gameplay people expected.
  2. Practical barriers—high API costs, unstable third‑party models, and strong player resistance to AI in games—make it hard to build sustainable, widely accepted AI‑centric titles.
  3. Generative AI’s soft, unpredictable behavior clashes with what makes games fun: simple, deterministic rules that produce emergent surprises, so raw AI output often short‑circuits the mechanics that create playable depth.
Obsolete Sony’s Newsletter • 99 implied HN points • 13 Aug 24
  1. Sony has been a leader in TV technology, starting with their portable TVs in the 1960s and advancing to high-definition and 4K models. They keep changing how we enjoy home entertainment.
  2. The Trinitron technology, introduced in 1968, set a new standard for color TV by offering sharper and more vibrant images. This invention marked a significant moment in TV history.
  3. Recent innovations, like the first OLED TV in 2007 and the introduction of 4K resolution TVs in 2012, show that Sony continues to push boundaries in display technology and enhance viewing experiences.
Alex's Personal Blog • 262 implied HN points • 15 Dec 25
  1. Roomba's maker has filed for bankruptcy and looks set to be sold, showing how failed deals and market-power fights can wipe out small hardware companies.
  2. CEOs are planning bigger AI budgets while workers, especially in writing and small agencies, are already losing jobs as cheaper, 'good enough' automation replaces paid labor.
  3. A nearby mass shooting made gun violence feel immediate and personal, highlighting how these events disrupt communities and how social media often spreads harmful rumors.
Marcus on AI • 4466 implied HN points • 19 Nov 24
  1. A recent study claims that ChatGPT's poetry is similar to Shakespeare's, but it's important to be skeptical of such bold claims. Many experts believe the poetry is just a poor imitation, lacking genuine creativity.
  2. The critique of the AI poetry highlights that it often reads like the work of an unskilled poet who doesn't truly understand the style they're trying to emulate. This raises questions about the quality of AI-generated content.
  3. It's essential to approach AI-generated work with caution and to not get swayed by hype, as popular claims may not always reflect the true abilities of the technology.