The hottest Substack posts right now

according to Hacker News
Category

Composable Architectures and Lego

Polymathic Being • 56 implied HN points • 27 Aug 23
🕹 Technology Hardware Modularity Design Software
  1. Composability is a powerful capability in design allowing modular parts to be combined and recombined.
  2. Lego demonstrates the concept of modularity and reusability, showcasing fantastic opportunities for leveraging existing efforts.
  3. Balancing composability is key, requiring intentional design and identifying natural limits to adapt and pivot effectively.

20250817

Curious futures (KGhosh) • 4 implied HN points • 17 Aug 25
🕹 Technology Science Innovation Engineering AI Environmental
  1. Many teenagers today are making AI friends, which can affect their real-life social skills.
  2. New technology is shaping the future of science and energy, like AI-driven labs and big hydroelectric projects.
  3. While efficiency in tech is important, it's also crucial to maintain human connection and creativity in our discoveries.
Get a weekly roundup of the best Substack posts, by hacker news affinity:

The Magic of Monads[Math Mondays]

Technology Made Simple • 19 implied HN points • 01 Nov 22
🕹 Technology Mathematics Programming Software Learning
  1. Monads in programming are a software engineering pattern for code reusability and writing pipelines at scale.
  2. Monads are great for chaining functions together, abstracting implementation details for clear code.
  3. Using monads is helpful when dealing with a group of objects that behave similarly, allowing for reusable code and easier implementation of common behaviors.

You are not entitled to feel proud of your ancestors

Philosophy bear • 71 implied HN points • 16 Apr 23
📖 Philosophy Beliefs Human nature Ethics Identity
  1. You are not automatically entitled to feel proud of your ancestors without considering their actions and impact
  2. Defending ancestors without acknowledging their faults is a form of bad faith and identity politics
  3. It's more meaningful to face the world as yourself, recognizing the diverse range of experiences and personalities in your ancestry

Fight to Repair Daily: Monday September 19, 2022

Fight to Repair • 19 implied HN points • 19 Sep 22
💼 Business Environment Industry Economy Legislation Technology
  1. Apple's iPhone 14 features a design that prioritizes repairability, marking a significant shift for the company and a win for right-to-repair advocates.
  2. iOS 16.0.1 has been shown to remove certain repair locks in the iPhone 14, indicating progress in enabling independent repairs, especially in the base model.
  3. India is experiencing a rising demand for refurbished gadgets, highlighting the need for a robust ecosystem to support repair and refurbishment services locally.

What even is a data asset?

Entry Level Investing • 16 implied HN points • 10 Dec 24
💼 Business Data Startups AI Technology Investing
  1. AI companies are focusing more on improving data instead of just making bigger models. They realize that using better, unique data can give them an edge.
  2. Having unique data, known as a 'data asset,' means owning valuable information that others can't easily get. This can be essential for success in AI.
  3. Startups are finding creative ways to gather exclusive data, like partnering with others or creating synthetic data. This helps them stand out in a crowded market.

Jump the Queue: Effortless Async Task Processing

metadat’s newsletter • 1 HN point • 02 Jul 24
🕹 Technology Programming
  1. Using PHP's fastcgi_finish_request can handle time-consuming tasks without a full asynchronous task queue, suitable for lower traffic volumes.
  2. Practical and easy-to-use solutions for asynchronous task processing can save development time and provide graceful failure handling.
  3. PHP may have its criticisms, but it can excel in certain scenarios and has been the backbone of many successful companies.

Phishing for Google’s g.co, AI Co-Pilot as Chaos Catalyst, & AI Missing the Mark

HackerPulse Dispatch • 13 implied HN points • 28 Jan 25
🕹 Technology Programming Tech Trends Software Cybersecurity AI
  1. AI tools can sometimes cause more problems than they solve, like in a recent project that turned chaotic when the developer relied too much on them.
  2. The first AI software engineer has a very low success rate, managing to complete only 15% of tasks. This raises doubts about AI's ability to fully replace human engineers.
  3. Overreliance on AI for coding is making new programmers less skilled. They are losing important problem-solving abilities because they are not practicing those skills.

Galaxy’s vertical bet

Miner Weekly • 19 implied HN points • 31 Dec 22
🕹 Technology Regulation Hardware and Infrastructure Bitcoin Mining Digital Assets Energy consumption
  1. Galaxy Digital acquired distressed assets from Argo Blockchain, showcasing a move towards vertical integration.
  2. Galaxy's increased focus on self-mining production may pave the way for more competitive cost efficiencies.
  3. The cryptocurrency industry's landscape saw significant developments in 2022, with companies facing challenges and seeking strategies for growth in the coming year.

The Stock Market Sits On The Edge Of The End Of The World

QTR’s Fringe Finance • 51 implied HN points • 12 Oct 23
💰 Finance Geopolitics Global Conflicts Fiscal policy Monetary Policy Stock Market
  1. Geopolitical volatility and flawed monetary policy make current times unique and potentially volatile.
  2. Debt levels, monetary policies, and government spending are creating unprecedented financial challenges.
  3. Artificial market boosts, geopolitical tensions, and social unrest are contributing to a fragile economic situation.

Thoughts for the Second Half of 2025

Jay's Data Stream • 5 implied HN points • 15 Jul 25
💼 Business Self-Improvement Career development Entrepreneurship Productivity Startup
  1. Being 'in-the-pocket' feels safe and comfortable, like following the crowd. But sometimes, taking risks and stepping 'out-of-the-pocket' is necessary for growth.
  2. Mornings can be super productive for many people, while afternoons often lead to distractions. Finding the right routine can help you get a lot done.
  3. It's important to prioritize your time wisely. Too often, we focus too much on small issues instead of what truly matters in our lives.

Building CAUSL - Episode 9: The Cinderella of Lead Generation

CAUSL Effect • 19 implied HN points • 25 Apr 23
💼 Business Marketing Product Management Data Analysis Lead Generation Consulting
  1. The author is shifting focus from company updates to more engaging discussions that inspire thought and community interaction. They believe it's important to write about topics that spark conversations rather than just update on business progress.
  2. They define a lead as an actual conversation about their services, not just messages without responses. They're monitoring their lead data closely and have gained 15 leads so far, which they consider a decent start after a few months.
  3. Managing leads can feel stressful, especially when unsure if the opportunity will come through. The author prefers clear 'closed' leads over 'open' ones, as the uncertainty in 'open' leads can be more anxious than outright rejection.

Should AI replace judges?

Adam's Legal Newsletter • 19 implied HN points • 17 Jan 23
🕹 Technology Innovation Regulation AI Ethics Legal
  1. AI can serve as an accurate, knowledgeable, unbiased, and cost-effective arbitrator, potentially resolving disputes with speed and efficiency
  2. Despite current limitations, the legal profession should be open to AI innovations, recognizing the benefits it can bring to streamlining legal processes
  3. There may be challenges and ethical considerations in implementing AI as arbitrators, but these can be addressed through thoughtful regulation and technological solutions

Data Persistence Q&A

Hasen Judi • 71 implied HN points • 02 Apr 23
🕹 Technology Database
  1. Reinventing the wheel in data persistence can lead to more efficient and simplified systems than using relational databases.
  2. Having a persistence engine that writes data to disk as needed ensures reliability, scalability, and preserves disk lifespan.
  3. In handling object deletion within the indexing system, it's better to mark objects as deleted rather than cascading deletes, allowing for explicit control over data management.

Welcoming MVMNT to the Equal Ventures Portfolio

Equal Ventures • 19 implied HN points • 05 Oct 22
💼 Business Financial Services Investment Technology Supply Chain
  1. Equal Ventures invested in MVMNT, a platform democratizing access to software for freight shippers and brokers
  2. They use a freemium model to address the low willingness of non-digitally native industry buyers to pay for software
  3. MVMNT monetizes through fintech products like QuickPay, insurance, and payments, making their offerings free to customers

Building a Lasting Organizational Influence (Feat. Wayne Schmidt)

DruGroup • 79 implied HN points • 20 Jul 21
💼 Business Leadership Strategy Influence Organizational Behavior
  1. Organizations can have a lasting impact if they're built and managed well. Unlike ideas or people, organizations are resilient and can grow even when individual members come and go.
  2. Great leaders ensure continuity by preparing their organization for the future. This means recognizing and nurturing the leaders behind them and creating structures that last beyond their own involvement.
  3. It's important for leaders to balance their presence and absence strategically. Sometimes being there gives support, but not showing up can allow others to take the lead, which benefits the organization.

Salary of a Early-Stage Startup CEO

Tech Ramblings • 19 implied HN points • 23 Apr 23
💼 Business Finance Strategy Startups Entrepreneurship Management
  1. When starting a business, pay yourself just enough to live on. This way, you can focus on building the company without financial stress.
  2. Try to keep your living costs low before launching. This can help you manage funds better and prepare for the long journey ahead.
  3. As a startup CEO, it's important not to pay yourself too much. This helps keep resources for growth and shows you value your team's contributions.

On 'The End of History?'

Castalia • 19 implied HN points • 22 Mar 23
📖 Philosophy Liberalism Critique Political theory
  1. Fukuyama's essay, 'The End of History,' argues that liberal democracy is the final form of government, evolving from historical conflicts. He suggests that the end of the Cold War marked this significant shift in political ideology.
  2. The essay faces criticisms for oversimplifying the relationship between free markets and democracy, especially how some countries have adopted capitalism without embracing democratic reforms. This indicates that economic success doesn't guarantee political freedoms.
  3. Fukuyama's idea of an 'end of history' raises concerns about a mundane future lacking ideological struggle. His reflections remind us that historical progress might not adhere to a neat path and can reinvigorate conflicts rather than eliminate them.

Automating API Discovery with RFC 9727

The API Changelog • 6 implied HN points • 20 Jun 25
🕹 Technology APIs Automation Data Formats Software Development
  1. RFC 9727 introduces a way to easily find and use APIs through a programmatic catalog. This means both humans and machines can discover APIs more efficiently.
  2. It uses predefined paths and techniques like 'well-known' URIs to help consumers locate an api-catalog. This makes it simpler for anyone looking to advertise their APIs.
  3. The api-catalog document can have different formats, but it must include a list of links to APIs. However, having a consistent format could help consumers understand and discover the APIs better.

How to Earn Six Figures as a Software Engineer in the UK

The Fat Software Engineer • 72 implied HN points • 30 Mar 23
💼 Business Big Tech Startups Career development Job Market
  1. Earn six figures in the UK as a software engineer by working hard, smart, and grinding Leetcode.
  2. Consider going to university for benefits beyond education like adulting skills, lifelong friends, and networking.
  3. Transition from a first job at a bigger company to a startup after gaining experience, focusing on learning, negotiating salary, and preparing for big tech roles.

Heuristic evaluation vs. user testing

UX Psychology • 39 implied HN points • 20 Jan 22
🕹 Technology UX Design Research Studies Software Development User Experience Usability testing
  1. Heuristic Evaluation involves experts examining an interface to find good and bad points, following specific industry standards for evaluation.
  2. User Testing is a more effective method since real users perform tasks on the interface, detecting major usability issues and providing valuable insights.
  3. While Heuristic Evaluation is quicker and cheaper, User Testing offers better performance estimates and detects more significant problems that affect user experience.

Promotions at Equal Ventures: Congratulations to Chelsea & Simran!

Equal Ventures • 39 implied HN points • 21 Jan 22
💼 Business Venture Capital
  1. Equal Ventures announced promotions for Chelsea Zhang and Simran Suri, recognizing their significant contributions to the company.
  2. Chelsea Zhang's journey from intern to Senior Associate showcases her impactful work in Supply Chain and Retail, driving investments and bolstering the company's confidence in the food industry.
  3. Simran Suri's dedication to Climate and the Care Economy, despite joining remotely, demonstrates her expertise and innovative contributions, making her a valuable asset to the firm.

Quant Letter: August 2025, Week-2

The Parlour • 4 implied HN points • 12 Aug 25
💰 Finance Market Analysis Quant Finance Economics Crypto Investing
  1. Prymer.ai is a new tool that quickly generates detailed reports for stocks, making the process much faster and easier.
  2. Recent research shows that social media sentiment can help predict financial trends, which might be useful for investors.
  3. A study found that there are potential risk-free profit opportunities in real markets, challenging the common belief that they don't exist.

4 Key Trends Emerging from ITC

Equal Ventures • 19 implied HN points • 03 Oct 22
💼 Business Insurance Startups Climate Risk M&A
  1. Insurance startups are exploring opportunities beyond traditional insurance, including tech-enabled solutions and business development pathways.
  2. After a decline in valuation multiples, the interest in mergers and acquisitions (M&A) within the insurance industry is resurging.
  3. Focusing on climate risk is becoming a key priority for insurers, leading to changes in underwriting approaches and investment in climate-related initiatives.

Fableborne’s Kingdom NFT Presale starts February 13th!

Ronin’s Newsletter • 12 implied HN points • 11 Feb 25
🔮 Crypto Gaming NFTs Blockchain Digital Assets Investment
  1. The Fableborne Kingdom NFT presale begins on February 13th and runs until February 17th, where you can buy raffle tickets for a chance to win a Kingdom NFT.
  2. Kingdom NFTs are important for gameplay and can help players earn rewards by staking and merging them to increase their rarity.
  3. There are two stages to the NFT minting: a presale where winners are drawn, and a public stage where leftover NFTs can be minted starting February 20th.

Generative AI is the final nail in intellectual property's coffin

Cosmic Column • 71 implied HN points • 07 Apr 23
🕹 Technology Copyright AI Intellectual Property Content creation
  1. Intellectual property is hard to protect and control, making ownership challenging.
  2. Generative AI is making it easier to mass produce ripoffs, threatening traditional intellectual property control.
  3. The rise of generative AI may devalue creativity and challenge the long-term viability of intellectual property as we know it.

On WIRED magazine's startup phase (1993-1997)

The Future, Now and Then • 51 implied HN points • 04 Oct 23
💼 Business Business Models Tech Culture Founders Magazines Startups
  1. WIRED magazine's startup phase (1993-1997) was like a tumultuous startup journey, filled with rapid growth and financial struggles.
  2. Louis Rossetto led WIRED as a startup, investing in various ventures but facing financial challenges.
  3. The magazine's early years were marked by rapid expansion, big ambitions, and struggles to adapt to the changing tech landscape.

What is a Detroit-Ann Arbor Innovation Corridor?

Midwest Humble • 13 implied HN points • 28 Jan 25
💼 Business Collaboration Innovation Startups Community Economy
  1. The Detroit-Ann Arbor Innovation Corridor is about creating links between the startups in both cities. It focuses on attracting talent and resources to benefit the startup ecosystem.
  2. Affordable housing is a big issue in Ann Arbor, making it tough for new talent to settle there. Collaborating with Detroit could help address this challenge.
  3. There are good transport options like the D2A2 Bus that connect the two cities. More awareness and community connections could strengthen opportunities for networking and collaboration.

Episode 40: Better Built By Burkhard

burkhardstubert • 19 implied HN points • 15 Apr 23
🕹 Technology Software Development Continuous Integration Code Quality
  1. I/O-free tests are better for Test-Driven Development (TDD) because they are faster, isolated, and repeatable. This makes them more suitable for writing reliable software.
  2. It doesn't really matter if tests are labeled as unit, integration, or acceptance tests. What matters is how easy they are to write and how quickly they run.
  3. Successful software development practices like pair programming require a supportive company culture and a willingness from each developer to learn and adapt.

Searching for von Neumann

Malt Liquidity • 12 implied HN points • 14 Feb 25
💰 Finance Market Analysis Personal Finance Trading Investing Economics
  1. Finding purpose and fulfillment can be hard, especially when success feels empty. It's important to keep moving and searching for what truly matters in life.
  2. Recognizing our intellectual heroes, like John von Neumann, can inspire us, but it’s also crucial to understand that not everyone's contributions are widely acknowledged.
  3. The changing perception of careers and value in society can lead to a more significant transformation. Future views on work, retirement, and success may look very different.