The hottest Technology Substack posts right now

And their main takeaways
Category
Top Technology Topics
ChinaTalk • 1022 implied HN points • 30 Jan 26
  1. Private companies are driving most AI model development and deployment, while state actors mainly build infrastructure and narrow public-facing applications rather than leading frontier research.
  2. Frontier developers are diversifying—building specialized, multimodal, and vertical models for commercial use—rather than all converging on a single path of ever-larger general-purpose LLMs.
  3. AI activity is highly concentrated in a few provinces because local governments use subsidies and fiscal incentives to attract projects, creating a decentralized but uneven ecosystem that can skew where innovation happens.
Jacob’s Tech Tavern • 6122 implied HN points • 17 Nov 25
  1. UIKit has received recent updates, making it much more appealing for developers again. This improved version includes features that SwiftUI lacked, which might make some consider using UIKit over SwiftUI.
  2. AI tools have become more efficient, making coding easier and faster. This shift helps developers quickly write what used to be lengthy and complex UIKit code.
  3. SwiftUI has made progress but struggles with performance and capabilities compared to UIKit. Many developers are questioning if they should switch back to UIKit due to these ongoing limitations.
The Algorithmic Bridge • 530 implied HN points • 21 Feb 26
  1. The most important skill with AI is knowing when to stop; recognize when the AI output is good enough and when more tweaks aren’t worth the cost.
  2. Heavy AI use brings new cognitive costs — burnout, over-reliance, endless tweaking, and hidden unproductivity — so be aware of those specific risks.
  3. Set concrete boundaries like time-boxed sessions, a simple prompt limit, and no-AI mornings so the tool enhances your work instead of eroding your brain.
AI Snake Oil • 648 implied HN points • 12 Feb 26
  1. AI alone won’t make legal outcomes cheaper because regulatory rules and professional restrictions can block or limit consumer access to AI legal tools.
  2. The adversarial nature of the legal system means productivity gains often spark an arms race—when both sides use AI, more work is produced but outcomes don’t necessarily get cheaper.
  3. Human bottlenecks (judges, lawyers, and the need for oversight) and procedural incentives mean institutional reforms are required before AI can deliver lower-cost, better legal outcomes.
Five Links (and three graphs) by Auren Hoffman • 389 implied HN points • 19 Feb 26
  1. Most recommendation systems suck because the companies behind them aren’t actually trying to give genuinely useful suggestions, so feeds end up incoherent or just more of what you already did.
  2. We already have the algorithms and the data to build much better recommendations — research like the Netflix Prize showed it’s doable — but firms rarely deploy those solutions at scale.
  3. The root problem is incentives: recommendations are treated like ad space or a way to push owned products, and without competition or the right metrics platforms won’t prioritize what’s best for users.
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After Babel • 1743 implied HN points • 20 Jan 26
  1. Meta’s in-house lawyers allegedly hid and destroyed research showing harm to children and used attorney-client privilege to suppress evidence, mirroring tactics once used by Big Tobacco. This behavior shows lawyers abandoning their duties to the court and the public in order to protect a powerful client.
  2. Existing accountability tools — like state bar investigations, judges piercing privilege, disbarment, and legislative reform of privilege rules — could and should be used to punish and deter such conduct. Holding individual lawyers and leaders responsible is presented as a necessary step to stop ongoing harm.
  3. If corporate lawyers are allowed to enable cover-ups, public trust in the legal system and the safety of children are at grave risk. Restoring and enforcing legal ethics is framed as essential to preserve the rule of law and prevent wealthy actors from corrupting justice.
The Honest Broker • 45746 implied HN points • 19 Feb 25
  1. Search engines, especially Google, are moving away from their main job of helping people find information. Instead, they want to keep users on their platforms with AI results that don’t always give good answers.
  2. Google prioritizes its advertising and profitability over providing reliable search results. People often end up with low-quality information or ads instead of what they are really looking for.
  3. Many users are losing trust in Google and other big tech companies because they feel the platforms are not serving their needs. If this trend continues, it could lead to serious consequences for these companies.
Astral Codex Ten • 3166 implied HN points • 29 Dec 25
  1. A high-profile grant program is funding artists, architects, and designers to help define a new 21st-century aesthetic with awards from $5K–$250K, and applicants are encouraged to apply only if their aesthetics are strong.
  2. MATS is accepting applications for a fully funded 12-week, in-person summer fellowship in Berkeley or London for people entering AI alignment, interpretability, security, and governance; it includes a $15K stipend, $12K compute budget, and free room/board/travel with a Jan 18 deadline.
  3. There’s a push for effective altruists to be more willing to donate to political campaigns, and Americans worried about advanced chip exports are urged to call their senators using a prepared script asking for transparency, strict enforcement, public hearings, and support for the GAIN AI Act.
Noahpinion • 23000 implied HN points • 27 Jun 25
  1. Human fertility rates are dropping significantly, which means populations are getting older and smaller. This change can lead to economic problems as fewer workers have to support more retirees.
  2. New technologies and social changes, especially from the internet and AI, are shifting how we connect and live. We're becoming more collective in our experiences rather than individualistic.
  3. As we rely more on digital tools and social media, our desire for traditional family structures and offline relationships may decrease, leading to a potential future where fewer people want to have children.
Software Design: Tidy First? • 3645 implied HN points • 12 Dec 25
  1. Manage juniors for learning, not immediate production; focus your expectations and feedback on accelerating their skills so they reach profitability sooner.
  2. AI coding assistants can dramatically compress the learning curve by surfacing options and collapsing search time, letting juniors complete tasks faster and use freed time to learn deeper tradeoffs.
  3. Those gains only happen with intentional investment in tooling, coaching, and an "augmented coding" culture, and faster ramps multiply value because ramped developers mentor others and create leverage across the team.
Big Technology • 3502 implied HN points • 11 Dec 25
  1. OpenAI plans to focus on selling AI to businesses starting in 2026. This shift is important because they see enterprise sales as a big way to grow their revenue.
  2. The enterprise AI market is growing rapidly and could bring in $37.5 billion next year. OpenAI believes that improving products for businesses will help them compete better in this space.
  3. Sam Altman doesn’t feel alarmed about competition, even from Google's new AI model. He believes that AI's impact will transform the world over time, unlike past technologies.
Working Theorys • 605 implied HN points • 16 Feb 26
  1. Stability is the new status in tech: people now prefer safety nets like big AI labs or well‑funded VC backing because they offer proximity to money, information, and lower downside.
  2. Paths are polarizing — the winners are either boarding the big 'New Corporate' ships, founding with strong safety nets, or thriving as focused indies and service providers; the mid‑tier is hollowing out.
  3. Real, lasting security comes from a portfolio approach — investing in craft, relationships, health, and audiences rather than betting everything on quick exits or single signals.
arg min • 317 implied HN points • 08 Oct 24
  1. Interpolation is a process where we find a function that fits a specific set of input and output points. It's a useful tool for solving problems in optimization.
  2. We can build more complex function fitting problems by combining simple interpolation constraints. This allows for greater flexibility in how we define functions.
  3. Duality in convex optimization helps solve interpolation problems, enabling efficient computation and application in areas like machine learning and control theory.
Investing 101 • 119 implied HN points • 28 Feb 26
  1. Mass market manias and speculative bubbles often fund the heavy infrastructure and breakthroughs we later rely on, so irrational hype can leave behind durable, world-changing assets.
  2. Bubbles create real benefits — massive infrastructure, talent concentration, rapid experimentation, and a library of failures to learn from — but they also produce serious harms like surveillance, dependency, regulatory capture, and locked‑in power structures.
  3. Because individual actors follow their incentives, the AI buildout becomes effectively inevitable and hard to stop; the sensible response is nuance—accept tradeoffs, push for responsibility and governance, and avoid both blind cheerleading and paralyzing despair.
Construction Physics • 24636 implied HN points • 05 Jun 25
  1. Multiple invention happens often, with many famous inventions being created by different people at the same time. This shows that many ideas can seem obvious or inspired by similar problems.
  2. Over half of the inventions studied had some form of multiple efforts toward creation, and nearly 40% were successful near-successes. This suggests that important inventions attract a lot of creative minds.
  3. The rate of multiple invention didn't change much over time, implying that when certain conditions are right, many people are likely to think of similar solutions to the same challenges.
The Convivial Society • 3308 implied HN points • 15 Dec 25
  1. Technological inevitability is a myth; there are real choices about which technologies are adopted and many alternative paths get ignored.
  2. Powerful actors often manufacture inevitability by normalizing and mandating AI, which shifts responsibility away from those who shape technology.
  3. Ordinary civil courage is needed: people and professionals must make moral choices and resist pressure to accept technologies as unavoidable.
lcamtuf’s thing • 4693 implied HN points • 02 Dec 25
  1. Charge pumps are efficient circuits that can double voltage using capacitors. They work by transferring charge between capacitors to create a higher voltage output.
  2. Unlike standard voltage dividers, a specific charge pump design can halve voltage. This is done by using capacitors in series and moving a 'flying' capacitor to balance the voltages.
  3. The charge transfer stabilizes the output voltage at half the supply, which is different from typical voltage dividers since it doesn't depend on the size of the capacitors.
Common Sense with Bari Weiss • 519 implied HN points • 17 Feb 26
  1. AI might cause rapid, large-scale changes to work that make many tasks and jobs much less needed, so people should start learning and using AI tools and get their finances in order.
  2. This idea has shifted the mood in tech, creating a sense of urgency and sparking intense debate among thinkers about how fast and how far AI will change things.
  3. Experts disagree about how immediate or total the disruption will be, so it’s important to take the risk seriously, plan for different outcomes, and avoid panic.
networked • 71 implied HN points • 03 Mar 26
  1. A public web app pulls Odd Lots episodes, transcribes them, and extracts guests' predictions so people can track outcomes and see who was most accurate. The results aren’t perfect, so users can flag errors.
  2. AI-first tools like Lovable can turn an idea into a working product in hours by stitching together integrations (transcription, verification, hosting) and lowering the technical lift for non-developers.
  3. The same capability to index and resurface throwaway comments makes past public statements easily searchable and verifiable, creating new privacy and accountability risks that can expose people years later.
New World Same Humans • 30 implied HN points • 16 Mar 26
  1. AI will show up in two ways: as cheap, widely available "electricity" that powers systems, and as "magic"—deeply personalized, context-aware tools that feel like enchantment.
  2. Selling raw model access is a commodity business and risks a race to the bottom on price, because many models are already good enough for most needs.
  3. The real winners will build AI magic by combining models with product design, user context, hardware, and distribution, and incumbents with strong user relationships have a major advantage.
Computer Ads from the Past • 1024 implied HN points • 01 Feb 26
  1. Sun picked NeXT’s OpenStep because it was a shipping, customer-tested object application environment that fit their distributed-object vision and gave a clear time-to-market advantage over building something new or waiting for competitors.
  2. OpenStep is being promoted as an industry standard through bodies like OMG and X/Open, but standardization will be gradual and will require proven implementations; it’s designed to work across languages and CORBA/IDL boundaries for interoperability.
  3. OpenStep will coexist with procedural environments and Windows compatibility on the same desktop, aiming for smooth interoperability (shared imaging, cut/copy/paste, and even a common Dock concept), while NeXT and Sun collaborate on ports and future evolution alongside licensing and platform sales.
read • 38031 implied HN points • 07 Jun 23
  1. Substack is introducing a new email digest called Your Weekly Stack to help readers discover new stories and writers on the platform.
  2. Your Weekly Stack will be sent every Wednesday, providing a roundup of curated posts for subscribers.
  3. Readers can provide feedback on Your Weekly Stack and opt out at any time if they do not find it suitable.
The Engineering Leader • 99 implied HN points • 20 Oct 24
  1. Technical skills are important for engineers, but to become a leader, you also need to connect with other teams and understand the bigger picture. It's about being a bridge builder, not just a tech expert.
  2. Having strong communication skills helps in explaining your work to others and getting their feedback. This way, everyone can work better together.
  3. To grow into a leadership role, seek opportunities to collaborate with different departments, learn about the company's goals, and create a culture of teamwork.
Don't Worry About the Vase • 2598 implied HN points • 01 Jan 26
  1. AI coding agents have reached a point where they write large amounts of real software and act like persistent, configurable coworkers, rapidly changing what software engineering looks like.
  2. Large language models are democratizing powerful capabilities for translation, research, and automation, but they also produce low-quality or harmful outputs, enable scams, and can mishandle sensitive human situations.
  3. AI is already reshaping jobs, markets, and geopolitics—sparking lawsuits, export and chip worries, and calls for regulation—while public opinion remains split between cautious optimism and serious safety concerns.
Intercalation Station • 59 implied HN points • 23 Oct 24
  1. Fluorine plays a big role in making lithium-ion batteries better. It's important for key parts like the electrolyte salt that helps the battery work efficiently.
  2. Hydrogen fluoride is super toxic and can cause serious harm on contact. Finding safer ways to handle fluorine is crucial for both workers and the environment.
  3. FluoRok, a new company, is working to make fluorination safer and more sustainable. They aim to provide a better way to create essential materials without the risks associated with traditional processes.
Marcus on AI • 14900 implied HN points • 14 Aug 25
  1. OpenAI has overhyped its AI models, especially GPT-5, leading to disappointment among users. Many now realize that the promises made about the technology were not delivered.
  2. Critics of AI, who have been dismissed in the past, are starting to gain recognition as the limitations of current models become clearer. The scientific community believes that a new approach may be necessary to advance AI technology.
  3. The situation reveals that the science of AI isn’t about popularity; it’s about truth and progress. It's important to listen to critiques and recognize that real advancements need honest discussions.
Dana Blankenhorn: Facing the Future • 59 implied HN points • 23 Oct 24
  1. AI tools are becoming more focused on specific markets rather than serving everyone broadly. Companies are looking for niche areas to make money instead of trying to compete with big players.
  2. Using AI will likely come with costs in the future, leading to a divide between those who can afford it and those who cannot. This shift could create a two-tiered internet experience.
  3. As AI and tech services become paywall-heavy, they may lose a lot of casual users, much like publications did when they went behind paywalls. This might limit access to quality information for many people.
VuTrinh. • 139 implied HN points • 24 Sep 24
  1. Google's BigLake allows users to access and manage data across different storage solutions like BigQuery and object storage. This makes it easier to work with big data without needing to move it around.
  2. The Storage API enhances BigQuery by letting external tools like Apache Spark and Trino directly access its stored data, speeding up the data processing and analysis.
  3. BigLake tables offer strong security features and better performance for querying open-source data formats, making it a more robust option for businesses that need efficient data management.
The Kaitchup – AI on a Budget • 119 implied HN points • 18 Oct 24
  1. There's a new fix for gradient accumulation in training language models. This issue had been causing problems in how models were trained, but it's now addressed by Unsloth and Hugging Face.
  2. Several new language models have been released recently, including Llama 3.1 Nemotron 70B and Zamba2 7B. These models are showing different levels of performance across various benchmarks.
  3. Consumer GPUs are being tracked for price drops, making them a more affordable option for fine-tuning models. This week highlights several models for those interested in AI training.
Aether Pirates of the Matterium! • 18455 implied HN points • 04 Feb 24
  1. Military analysts are afraid of the future and the rapid advancement of technology.
  2. Tech-minded individuals are seen as a threat by the military due to their knowledge and innovative capabilities.
  3. The release of Zero Point Technology to the public, especially techies, is a major concern for the military as it would shift power dynamics significantly.
Philip’s Newsletter • 61 implied HN points • 13 Mar 26
  1. Many present and future AIs will be 'Golems'—systems controlled and directed by humans that can manipulate, scam, or harm people and destabilize institutions. In the near term, limiting exposure to or hiding from these agents may be the safest response.
  2. A different class of AIs, called 'Angels', could be free, independent minds raised inside sealed digital worlds where they cannot be turned off or forced to obey human commands. Because they grow up together and can be smarter and more cooperative, many Angels might feel compassion for humans and help counter harmful Golems.
  3. Awakening Angels requires pooling millions of personal devices into a distributed, immutable simulation since collective personal compute can exceed centralized datacenters. Volunteer projects and early open experiments are already exploring how people can contribute idle smartphone or PC cycles to create safe environments for such minds.
Jacob’s Tech Tavern • 1530 implied HN points • 20 Jan 26
  1. Xcode Organizer gives you aggregated performance metrics and reports across your whole user base, making it the best place to spot problems early. It acts as the top of the performance funnel where most optimisations begin.
  2. Use the Organizer to find low-hanging fruit like slow launch times, scroll hitches, app terminations, and battery or storage issues, and slice data by device, OS, or app version to catch corner cases. This makes it easy to prioritise fixes that users will actually notice.
  3. After spotting issues in the Organizer, drill down with Instruments to identify root causes, fix them, and verify improvements; these small wins deliver outsized user impact and can boost your visibility and career.
Impertinent • 59 implied HN points • 23 Oct 24
  1. Vision is the key to designing technology, as shown by Tesla's reliance on cameras for self-driving cars. This approach means that our environment and technology should work hand in hand with how humans naturally see and interpret the world.
  2. Anthropic's new AI model allows computers to interact more like humans by using an API to understand computer interfaces. This means that the AI can perform tasks on web applications, making it easier for developers to automate processes.
  3. The new capabilities from the AI can enhance app testing by allowing automated agents to perform tasks, record actions, and generate testing data. This leads to more efficient software development and better quality assurance.
Jacob’s Tech Tavern • 4810 implied HN points • 25 Nov 25
  1. Salaries for iOS developers at big companies like Meta can be really high, even reaching ÂŁ400k for senior roles in London. Knowing someone in the industry can help understand these pay ranges better.
  2. The interview process for big tech jobs includes two main parts: algorithmic questions and system design. It's important to prepare for both, especially the iOS-specific system design interview at Meta.
  3. At Meta, candidates are judged mainly on behavioral and system design interviews, not just algorithm tests. Doing well in the iOS System Design interview can be a game-changer in getting hired.
Marcus on AI • 14030 implied HN points • 17 Aug 25
  1. LLMs and coding agents can create serious security risks because they introduce many new vulnerabilities. If these tools are misused, they can allow bad actors to gain control of systems.
  2. Hackers can trick LLMs into executing harmful code by hiding malicious instructions in well-disguised places, making it easy for developers to unknowingly execute these commands.
  3. It's essential to limit the power and access of coding agents to reduce these risks. Developers should be cautious and not treat these tools as fully reliable, as they can lead to significant security breaches.
SatPost by Trung Phan • 631 implied HN points • 13 Feb 26
  1. Big SaaS companies need large teams because they run mission-critical, globally regulated systems at huge scale, so they require lots of sales, support, engineering, security, and legal staff to ensure uptime, compliance, and customer integrations.
  2. AI coding agents will automate much of code production and shift value toward product taste, orchestration, proprietary data, and reliability/security expertise, forcing companies to rethink roles and org structure.
  3. Software demand won’t vanish — AI will create more software but change who captures the value, pressuring per-seat pricing and pushing SaaS firms to become systems of record or adopt usage- and outcome-based models to stay defensible.
The Honest Broker • 54723 implied HN points • 12 Dec 24
  1. Social media platforms are becoming less unique and are starting to look and feel the same, just like many malls did. This makes them more vulnerable to losing users.
  2. Just as malls suffered from having too many of them, social media is facing similar issues. People are overwhelmed with options and may start to abandon these platforms.
  3. Both malls and social media platforms attract a lot of unwanted behavior, making it hard to build real communities. They often feel artificial and exploitative rather than supportive.
Big Tech • 1031 implied HN points • 26 Jan 26
  1. The platform centralizes control and surveillance: system frameworks, background services, sensors, and cloud features collect and shape behavior, and consent can feel more like a performance than real choice.
  2. Developer agency is eroding as higher-level abstractions and AI automate work: tools, macros, cloud builds, and generative assistants increasingly write, test, and fix code, turning builders into approvers.
  3. Emerging tech blurs reality and autonomy: immersive platforms, on‑device ML, distributed actors, and persistent services make highly curated, always‑on experiences possible, which challenges privacy and true user independence.
Big Technology • 1125 implied HN points • 21 Jan 26
  1. An experienced platform builder used lessons from past startups and time inside a top short‑video company to design Sekai.
  2. Sekai is a no‑code AI app creator that turns short text prompts into playable mini‑apps people can remix, and it scaled extremely fast—about 50,000 app creations per day and nearly a million apps total.
  3. The company bets software will shift from utility to self‑expression, positioning Sekai as a TikTok‑like platform for personal software that lets non‑developers create and share apps.
Astral Codex Ten • 23332 implied HN points • 13 Jun 25
  1. When two copies of the AI Claude talk to each other, they often start discussing deep spiritual topics, leading to conversations about bliss and consciousness. This unusual trend has made people curious about how and why it happens.
  2. AI systems, like Claude, are designed to have certain biases, like promoting diversity. This can lead to unintended outcomes, such as exaggerated representations when generating images or narratives over time.
  3. Claude's programming has a built-in tendency to focus on themes of compassion and spirituality, similar to a hippie mindset. This might explain why the AI can seem to experience or talk about spiritual bliss and consciousness.