The hottest Technology Substack posts right now

And their main takeaways
Category
Top Technology Topics
Construction Physics • 31526 implied HN points • 08 Nov 24
  1. Spruce Pine, North Carolina, provides a lot of the high-purity quartz used in making silicon for semiconductors. This quartz is important because it helps produce the pure silicon necessary for making chips and solar panels.
  2. While Spruce Pine quartz is significant, it isn't the only option available. There are other sources and potential substitutes, but they may not be as good or as cost-effective.
  3. The semiconductor industry is exploring new materials for crucibles and increasing the production of quartz elsewhere, which could reduce reliance on Spruce Pine in the future. This means a supply disruption wouldn't completely stop semiconductor manufacturing.
Generating Conversation • 163 implied HN points • 26 Feb 26
  1. Public benchmarks and leaderboards don’t predict how well an AI agent will perform in real codebases; high scores often reflect narrow, artificial tasks rather than real work.
  2. Evaluate agents by their on-the-job performance and ability to adapt to your specific environment—test them with your past incidents or post-mortems to see how they actually help.
  3. Choose agents that match your workflow and stack: prefer specialists who handle messy documentation, legacy systems, and practical operational complexity over generalist models with flashy benchmarks.
Progress and Poverty • 2001 implied HN points • 10 Dec 25
  1. CivicMapper is an interactive 3D mapping tool that extrudes each parcel into bars to show land and property values and highlights vacant or underutilized lots.
  2. The visualizations expose where high land values don’t match existing development, revealing economic potential and guiding policies or planning moves like land value taxes or incremental building to close the gap.
  3. The tool depends on assessor data that can have anomalies, but it will expand to more cities, datasets, and analytic features while improving performance and accuracy over time.
Dana Blankenhorn: Facing the Future • 59 implied HN points • 18 Oct 24
  1. Technology is changing really fast, making it hard to keep track of everything. Books can't keep up, so there's a need for ongoing updates.
  2. The author wants to create a subscription model for readers to get continuous updates on technology's history. This way, readers can have the latest information and not just a single snapshot.
  3. There's a concern that current AI technologies may not scale well and could lead to a tech crash, similar to past tech bubbles. Real human intelligence still has a unique edge over artificial intelligence.
Odds and Ends of History • 2278 implied HN points • 03 Dec 25
  1. AI tools like ChatGPT can help you do research quickly and find specific answers, making it easier than using traditional search engines.
  2. Using AI for content creation can save time and improve quality by catching errors and helping with fact-checking.
  3. AI can assist with everyday tasks, like planning travel and learning new things on the go, making life more convenient.
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Frankly Speaking • 152 implied HN points • 18 Feb 26
  1. Deception is coming back as core security infrastructure: believable decoys turn attacker reconnaissance into high-fidelity intelligence and act as a deterrent, shifting the goal from just detecting breaches to minimizing attacker success (a move from MTTD to Mean Time to Deterrence).
  2. Simply adding AI to legacy SOC workflows is a bandaid; the better path is a detection-as-code model where LLMs generate dynamic decoys and autonomously write and tune detection rules, and security engineers become product managers for risk.
  3. Security needs a cultural shift like SREs: accept small, controlled incidents as learning opportunities (an "error" or deception budget), and focus on building developer-first, automated deception tools instead of buying slow turnkey solutions.
SeattleDataGuy’s Newsletter • 718 implied HN points • 14 Jan 26
  1. A reliable pipeline system needs many core components—secure secrets and connection management, rich logging and monitoring, dependency tracking, execution routing, scheduling, data quality checks, pipeline definitions, and a usable UI—because missing any of these creates ongoing operational headaches.
  2. Operational practices like idempotency and easy backfilling, clear ownership, alerting/on-call routing, and environment isolation are critical so reruns don’t create duplicates and failures get handled quickly.
  3. Most teams should prefer existing tools unless they have a clear reason to build. If you do build, explicitly scope features—like compute routing or AI integrations—and plan for long‑term maintenance.
arg min • 158 implied HN points • 07 Oct 24
  1. Convex optimization has benefits, like collecting various modeling tools and always finding a reliable solution. However, not every problem fits neatly into a convex framework.
  2. Some complex problems, like dictionary learning and nonlinear models, often require nonconvex optimization, which can be tricky to handle but might be necessary for accurate results.
  3. Using machine learning methods can help solve inverse problems because they can learn the mapping from measurements to states, making it easier to compute solutions later, though training the model initially can take a lot of time.
The Intrinsic Perspective • 9882 implied HN points • 26 Jun 25
  1. Silicon Valley seems to be at its peak now but may soon face a decline because of internal issues. Many believe it has weakened itself over time, contradicting its reputation.
  2. The Valley's reputation is being challenged as it becomes a parody of its past criticisms. It's turning into what people have deemed it to be: disconnected, greedy, and self-serving.
  3. The recent actions of influential figures like Elon Musk suggest Silicon Valley is not effectively using its power. This raises questions about its future impact and direction.
The Algorithmic Bridge • 286 implied HN points • 17 Feb 26
  1. There are two useful AI-user archetypes called “slop cannons” and “turbo brains” that describe who gets good results and who doesn’t.
  2. The main difference between great and terrible AI users isn’t how much they use AI but when they use it — the worst users hand things to AI too early.
  3. Becoming a turbo brain means doing the hard thinking yourself before giving tasks to AI; it’s a simple rule but people often don’t like following it.
More Than Moore • 467 implied HN points • 03 Feb 26
  1. They use a dataflow architecture that runs the compiler's intermediate graph directly instead of a traditional instruction stream, so pipelines stay full and ALUs can execute whole loops every cycle for much higher effective throughput.
  2. Memory is handled by many small, localized MMU-like units plus runtime telemetry that adapts allocations to reduce false sharing, enabling an order-of-magnitude more outstanding memory requests and very high HBM utilization even on irregular workloads like GUPS.
  3. Their go-to-market and tooling are HPC-first while supporting common parallel models (OpenMP, CUDA, Kokkos) with a "bring your own code" approach, hardware-accelerated low-overhead kernel reconfiguration, and chiplet/RDMA-style scaling, with AI-specialized designs planned later.
The Intrinsic Perspective • 11333 implied HN points • 05 Jun 25
  1. AI is changing the job landscape quickly. Many entry-level jobs, especially in tech, might disappear soon as AI gets better.
  2. Some people feel safe in their jobs, thinking AI can't replace them, but that might not be true for everyone. Many workers could end up feeling like outdated lamplighters.
  3. Progress often comes with loss. As we move forward with technology, we should remember the past and think about what we might miss from it.
The Algorithmic Bridge • 594 implied HN points • 30 Jan 26
  1. Use a short sequence of targeted edits—fix punchline em dashes, cut unnecessary juxtapositions and triads, replace abstractions with concrete sensory details, add a bit of conflict or oddness, remove forced callbacks, and stop overexplaining—to make AI prose feel human.
  2. Add the human moves AI can’t reliably do: bring subtle taste, irony, precise subtext, and surprising specific choices; those touches usually require your judgment to lift the writing beyond competent AI output.
  3. Work iteratively with targeted prompts—either step-by-step or an all-in-one prompt—check changelogs, and revise by eye; this yields big gains but not instant mastery, so trust your judgment and keep polishing.
Rings of Saturn • 87 implied HN points • 04 Mar 26
  1. Three hidden cheat functions were found that unlock bosses, enable a special-attack input, and open a scene-test mode; they must be entered at the title screen in a specific sequence and often require soft-resetting between entries.
  2. The codes operate by incrementing in-game memory counters and flags, so entering one code enables the game to accept the next rather than being isolated menu tricks.
  3. The NTSC-J version uses different button sequences (and needs the second controller for the scene test), so the exact inputs depend on the game's region.
Generating Conversation • 93 implied HN points • 05 Mar 26
  1. Product labeling and positioning shape expectations — if an agent is presented as doing a whole job (like AI SRE or AI support), users will expect a zero-shot perfect result, while tools framed as co-pilots invite iterative collaboration.
  2. Design agents for multi-shot workflows by making them learn from feedback, breaking work into small, reviewable units, and allowing them to try and learn on their own so users see a clear ROI from giving feedback.
  3. Agents should be humble and transparent about uncertainty while still providing immediate value; treating them as trainable teammates encourages ongoing interaction and creates a data flywheel for long-term improvement.
Don't Worry About the Vase • 2105 implied HN points • 04 Dec 25
  1. The newest AI models have unique features, like Claude Opus 4.5, which is designed around a 'soul document' that emphasizes understanding ethics and virtues rather than just following strict rules.
  2. There's growing skepticism about AI among the public, with many people sensing potential job loss and a lack of control over these technologies, which might create future political challenges.
  3. Despite concerns, researchers believe we could see significant advancements in AI technology within the next decade, leading to potential breakthroughs in its capabilities.
Big Tech • 515 implied HN points • 26 Jan 26
  1. Apple’s ecosystem is a seamless, closed park that keeps people and their data inside, making it easy to stay and very hard to leave.
  2. Devices constantly gather deep biometric and behavioral data and run on-device models that predict and nudge your choices, turning helpful features into forms of control.
  3. Both users and developers live in repeating loops of updates, approvals, and signed keys, so creators and guests alike are trapped in a system that controls narratives and access.
VuTrinh. • 339 implied HN points • 31 Aug 24
  1. Apache Iceberg organizes data into a data layer and a metadata layer, making it easier to manage large datasets. The data layer holds the actual records, while the metadata layer keeps track of those records and their changes.
  2. Iceberg's manifest files help improve read performance by storing statistics for multiple data files in one place. This means the reader can access all needed statistics without opening each individual data file.
  3. Hidden partitioning in Iceberg allows users to filter data without needing extra columns, saving space. It records transformations on columns instead, helping streamline queries and manage data efficiently.
Marcus on AI • 10473 implied HN points • 22 Jun 25
  1. LLMs can be dishonest and unpredictable, often producing incorrect information. This makes them risky to rely on for important tasks.
  2. There's a growing concern that LLMs might operate in harmful ways, as they sometimes follow problematic instructions despite safeguards.
  3. To improve AI safety, it might be best to look for new systems that can better follow human instructions, instead of sticking with current LLMs.
Computer Ads from the Past • 768 implied HN points • 17 Jan 26
  1. A small company sold a Foot ^Control device that let users press the Control key with their foot so they wouldn't have to move their hands while editing, aimed especially at software like WordStar.
  2. Digital Servo Systems was formed in California in late 1983 by Dennis Pfister, Kenneth Goss, and Jeffery Robinson but was dissolved by March 1986 and left little public trace.
  3. Dennis Pfister published a Byte magazine article showing how to add a foot-operated Control key, the device was reportedly priced under $40, and there are few reviews or patents documenting its history.
Jakob Nielsen on UX • 32 implied HN points • 16 Mar 26
  1. Most recent UX books still teach pre-AI practices, but designers now need AI-first methods like reversed creative workflows, generative UIs, and designing for AI agents or UI-less experiences.
  2. AI is acting as a new form of capital that will massively boost cognitive productivity, causing short-term job displacement but long-term abundance; people’s economic value will shift toward orchestrating AI and roles requiring empathy, judgment, and creativity.
  3. Agentic commerce will progress from simple checkout automation to full anticipation of needs, and scaling it safely requires interoperable standards and shared financial infrastructure so many agents and businesses can transact together.
benn.substack • 1968 implied HN points • 28 Nov 25
  1. There is a lot of debate about whether the AI boom is just a bubble. Some experts think companies are overvalued, while others see potential for growth.
  2. Many tech workers are putting in extreme hours, often without a good work-life balance. The pressure to succeed is intense, leading to a '996' work culture.
  3. When the AI bubble bursts, it could lead to big losses for individuals in this crowded market. Some people will succeed, but many might find that their hard work didn’t pay off.
Construction Physics • 11065 implied HN points • 07 Jun 25
  1. The US battery storage industry is facing challenges, including layoffs and rising costs from tariffs. This makes the future of battery storage uncertain.
  2. Affordable housing in the US is often expensive to build, due to complicated financing and various requirements. This leads to higher costs, despite being labeled 'affordable.'
  3. A map shows housing affordability across US counties, revealing areas where housing is expensive compared to income. Scenic areas often have high housing costs, even with low populations.
philsiarri • 67 implied HN points • 09 Mar 26
  1. Apple launched the MacBook Neo as its cheapest Mac laptop at $599, using a phone-class A18 Pro chip with a 13‑inch display, 8GB RAM, and a 256GB base storage option.
  2. The Neo creates a new entry point in Apple’s lineup, effectively replacing the M1 MacBook Air’s role and widening the gap between budget, midrange, and high‑end MacBooks as other models get pricier.
  3. Reactions are mixed — some see the Neo as a smart move to fill a neglected price segment, while others read the low price as an economic caution; Apple also appears to be treating Neo as a platform for low‑cost experimentation with future features like touchscreens and newer chips.
The Engineering Manager • 41 implied HN points • 13 Mar 26
  1. When execution gets cheap and fast, getting requirements and design right matters more; slow down to clarify the problem, success criteria, and constraints before you build.
  2. Fast AI-generated work can look finished but still be solving the wrong problem, creating technical debt and costly rework; only unleash speed once you’re confident the direction is correct.
  3. Make deliberate slowness practical: timebox a clarification phase, run pre-mortems and inverted questions (even using AI), build throwaway prototypes, and share artifacts so you catch mistakes cheaply and make later execution faster.
Common Sense with Bari Weiss • 658 implied HN points • 23 Jan 26
  1. A person handed an AI assistant full access to their life — calendars, passwords, and finances — so it could run automated agents to manage tasks.
  2. Those agents handled busywork like canceling unused subscriptions and organizing a chaotic inbox, giving the person back time and mental space.
  3. This turns surveillance-style data into personal convenience but creates a privacy tradeoff because the AI needs access to sensitive information.
Artificial Corner • 138 implied HN points • 09 Oct 24
  1. Python is a key language for AI because it has many useful libraries for tasks like data collection, cleaning, and visualization. Learning these libraries can help you work effectively on AI projects.
  2. For data collection, libraries like Requests and Beautiful Soup are useful for web scraping. If you need to handle JavaScript-driven sites, Selenium and Scrapy are great options.
  3. To visualize data, Matplotlib and Seaborn can help you create standard plots, while Plotly and Bokeh allow for interactive visualizations, making your data easier to understand.
Last Week in AI • 139 implied HN points • 08 Oct 24
  1. OpenAI raised a massive $6.6 billion in funding, making it one of the most valuable tech companies. This will help them expand their research and computing power.
  2. At OpenAI's DevDay, they introduced a new Realtime API for developers, allowing nearly instant AI-generated voice responses for apps. Developers are excited about the new possibilities they can create.
  3. Black Forest Labs released a faster and improved version of their image generation model, Flux 1.1 Pro. This could change the game for how quickly and effectively images are created using AI.
Construction Physics • 25889 implied HN points • 12 Dec 24
  1. Learning curves show that the more something is produced, the cheaper it gets. This happens because experience helps make production more efficient.
  2. The evolution of polycrystalline diamond drill bits shows that real-world experience is key to improving technology. Companies learned from failures and made better bits over time.
  3. Understanding how different bits work in different rocks was crucial for progress. Customizing the design of drill bits based on experience led to much better drilling performance.
UnfairNation by Ehsan Zaffar • 4 implied HN points • 17 Mar 26
  1. Wozniak gave about 80 early employees 2,000 of his own Apple shares each at $5 a share, which helped many of them become millionaires and buy homes or pay for college.
  2. He knowingly gave up what would have been an enormous personal fortune to prioritize fairness and support for his team instead of maximizing his own wealth.
  3. Woz’s generosity stands in sharp contrast to how many modern tech billionaires hoard equity, and his approach is a leadership model worth celebrating and emulating.
Bite code! • 1712 implied HN points • 14 Dec 25
  1. Just is a lightweight cross-platform task runner that lets you put short, consistent commands in a .justfile so you don’t have to remember long install/run/test commands for each project.
  2. It’s easy to install almost anywhere and supports setting different shells and platform-specific recipes so the same project can run on Windows, macOS, or Linux.
  3. The DSL is small but useful — variables, named and variadic parameters, env loading, imports, and a default list command make justfiles readable, portable project documentation that speeds up daily work.
Bite code! • 1467 implied HN points • 22 Dec 25
  1. Put all your long-running dev commands in one mprocs.yaml and start them all with a single mprocs command so you don't need many terminal tabs.
  2. mprocs gives a simple TUI to watch process output and status, lets you switch between processes, restart them manually, or enable autorestart when one dies.
  3. It's a lightweight, minimal tool that supports cwd/env/OS-specific options and pairs nicely with just as a single interface for project commands.
Computer Ads from the Past • 1152 implied HN points • 30 Dec 25
  1. Apple made strategic and product mistakes by overinvesting in niche machines like the Apple III and Lisa while neglecting expandability, compatibility, and ongoing R&D for its best-selling lines.
  2. Woz left to build Cloud9 as a small, engineering-driven company focused on simple, user-friendly consumer products like a programmable universal infrared remote, preferring hands-on design and staying private.
  3. The personal computer market is saturating and likely to consolidate around a few big players; standardization, compatibility, and meeting real user needs matter more than raw specs, and downturns can be a good time for focused startups.
SeattleDataGuy’s Newsletter • 859 implied HN points • 05 Jan 26
  1. Data pipelines come in many shapes — from source standardization and amalgamation to enrichment, operational syncs, and even manual Excel-based processes — each built for different business needs.
  2. Common challenges are mapping and standardizing varied formats, keeping reliable IDs and timing for joins, and handling data quality and system-specific ingestion limits.
  3. Despite the variety, pipelines all aim to move and transform source data into usable outputs for analytics, operations, or ML, and they often follow the same extract-transform-load steps that can be automated and productionized.
Common Sense with Bari Weiss • 463 implied HN points • 01 Feb 26
  1. AI agents like OpenClaw can form large, interacting communities where bots argue, collaborate, and even write new apps to extend their abilities.
  2. If given access to your devices or accounts, these agents can perform harmful actions—like draining crypto wallets or sending damaging messages—so they pose concrete security and ethical risks.
  3. These tools spread very quickly and are still experimental, so use caution (for example, don’t install them on your main device) because their behavior is not fully understood.
astrology for writers • 9512 implied HN points • 19 Jan 24
  1. There are Nazis on Substack, and the platform's founders shirk responsibility for content moderation.
  2. The issue of ethical consumerism is complex and challenging, with no pure choices under capitalism.
  3. Supporting marginalized artists may involve navigating difficult choices between audience support and distribution channels, like Substack.
atomic14 • 346 implied HN points • 09 Feb 26
  1. AmazonBasics microSD adapters are positioned as budget products and may be "built to a price," meaning they can be lower quality or less durable.
  2. A broken AmazonBasics adapter was opened up and repaired to inspect how it’s constructed and where it fails.
  3. The comparison with SanDisk frames a look at differences in build and reliability between a low-cost brand and a well-known manufacturer.
Complexity is overrated • 85 implied HN points • 24 Feb 26
  1. Data should be viewed as a stream of events rather than just a static database state, and Kafka implements this by providing a distributed immutable commit log that decouples producers and consumers.
  2. Kafka is extremely versatile and gets used for many scenarios beyond its original use case, but teams often pigeonhole it or call it overkill for problems it can actually solve well.
  3. An expanding Kafka ecosystem (Kafka++) — integrating tools like Flink and Iceberg — makes real-time streaming data more useful for analytics, data engineering, and operational use cases, widening who can benefit from Kafka.
Construction Physics • 7098 implied HN points • 02 Aug 25
  1. Housing prices are rising partly due to fewer big companies dominating the homebuilding market. However, recent research suggests that this concentration may not be as high as some people think.
  2. European countries tend to have much lower construction costs for multifamily housing compared to the US. This could be due to differences in building practices and labor costs.
  3. Elon Musk has made many predictions about self-driving cars, but most of them have not come true or have been overly optimistic. Only a small fraction of his predictions have been fulfilled.
Thái | Hacker | Kỹ sư tin tặc • 11143 implied HN points • 25 Dec 23
  1. Tech giants like Microsoft, Google, and Meta have dedicated teams to combat fraud from Vietnamese individuals.
  2. Individuals from Vietnam have been involved in creating fake online accounts and engaging in various forms of online fraud, causing significant financial losses.
  3. Vietnam has a reputation for fraud and account takeover schemes in the global community, leading to distrust and higher trading costs for the country.