The hottest Substack posts right now

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Getting started with Zeus Mobile Node

DarthCoin’s Bitcoin Guides • 19 implied HN points • 05 Feb 24
🕹 Technology Cryptocurrency Blockchain Lightning Network
  1. Zeus Mobile Node now offers an embedded LND node on your mobile device, providing a private LN node option with persistent service and support for Taproot channels.
  2. The app features integrated LSP for easy LN payments, contact book for quick transactions, and support for LNURL, LN Address send and receive.
  3. Users can onboard with Zeus Node by setting up the embedded node, opening channels with Olympus LSP, or using onchain balance to transact over LN.

The fourth quarter effect in small caps

Klement on Investing • 2 implied HN points • 07 Jan 26
💰 Finance Seasonality Earnings Accounting Risk management
  1. Smaller companies show a clear drop in earnings in their fourth fiscal quarter, with the effect strongest among the smallest 25–50% of firms.
  2. The decline is driven mainly by sudden rises in costs (COGS and SG&A) and outdated cost forecasting or weak internal systems, not by lower sales or audit-driven manipulation.
  3. Analysts usually don’t adjust for this Q4 effect, so misses are more common, but market reactions are muted since investors tend to focus on the coming fiscal year.

BizML: a framework for success in applied machine learning

TechTalks • 19 implied HN points • 05 Feb 24
🕹 Technology Data science Business Framework AI Machine Learning
  1. Most machine learning projects fail due to a gap in understanding between data scientists and business professionals.
  2. Eric Siegel introduces bizML, a six-step framework for successful machine learning projects that emphasizes starting with the end business goal.
  3. Improving human understanding and leadership is crucial for the success of advanced technologies like machine learning.

Comenzando con Zeus Mobile Node

DarthCoin’s Bitcoin Guides • 19 implied HN points • 05 Feb 24
🕹 Technology Cryptocurrency Finance Guides Blockchain
  1. This guide provides a step-by-step overview of using Zeus Mobile Node, a powerful LND node in a mobile device, particularly suited for Lightning Network newbies seeking a self-sovereign journey.
  2. Zeus Mobile Node now offers an integrated LND node feature, providing a private LN node experience with continuous LND service and Neutrino block filter synchronization for efficient operation.
  3. Key features of Zeus Node include private LND node, persistent LND service, Neutrino block filtering, simple Taproot channels, integrated LSP Olympus for instant LN transactions, and a built-in Point of Sale (POS) system for merchants.

Drivers of success

Tech and Thoughts • 2 HN points • 31 Jul 24
💼 Business Management Efficiency Leadership Operations Strategy
  1. Good communication is really important for success. It helps everyone understand each other and work better together.
  2. Having the right information and logistics is key. When things are organized and everyone has the info they need, success comes more easily.
  3. Competence matters, but it shouldn't overshadow other factors like communication and logistics. Balancing all these elements leads to better results.
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What I'm doing in GTM as B2B SaaS founder as of Dec 25

nonamevc • 4 implied HN points • 01 Dec 25
💼 Business Pricing Startups Marketing Distribution Positioning Sales
  1. Finding the right pricing strategy is key. It helps to define your product's position and understand customer willingness to pay.
  2. Using multiple channels for outreach lets you see what works best. Experimenting with content, LinkedIn presence, and cold outreach can help attract your first customers.
  3. Engaging authentically and sharing real experiences builds trust. Writing from a personal perspective and participating in niche communities can create stronger connections.

Corrective RAG (CRAG)

Cobus Greyling on LLMs, NLU, NLP, chatbots & voicebots • 19 implied HN points • 05 Feb 24
🕹 Technology Machine Learning Data AI Software Development Information Retrieval
  1. Corrective Retrieval Augmented Generation (CRAG) helps improve how data is used in language models by correcting errors from retrieved information.
  2. It uses a special tool called a retrieval evaluator to check the quality of the data and decide if it's correct, incorrect, or unclear.
  3. CRAG is designed to work well with different systems, making it easier to apply in various situations while enhancing document use.

Rethinking The Software Development Life Cycle

Beekey’s Substack • 2 HN points • 31 Jul 24
🕹 Technology Agile Methodology Project management User Experience Software Development
  1. The traditional waterfall model of software development rarely works well. Projects often go over budget, and the software can end up being unusable.
  2. Agile development was created to improve this, but many teams still stick to outdated processes and struggle with meeting user needs.
  3. Involving users early by writing code during requirements gathering can lead to better feedback and faster development, making sure the software created is valuable.

TechLetters #161 - Death indirectly following ransomware; Drones and cyber during wars are changing military strategy; Factorisation of number 247 on a quantum computer

Lukasz Olejnik on Cyber, Privacy and Tech Policy Critique • 19 implied HN points • 05 Feb 24
🕹 Technology Technology Policy Other Security
  1. A 32 year old security bug in Linux's qsort algorithm poses a threat.
  2. Ransomware incidents are causing serious consequences, including job loss and health issues like suicide.
  3. The factoring of number 247 on a quantum computer breaks RSA-8 cryptosystem in 35 seconds.

How I made Quickview, my AI-based Crypto Newsletter

Implementing • 19 implied HN points • 05 Feb 24
🕹 Technology AI Crypto Database Automation
  1. Quickview is a newsletter created to share AI-based summaries of YouTube videos from crypto creators, helping subscribers stay informed and connected with the crypto community.
  2. Database modeling for this project involves tables for videos, creators, categories, languages, summaries, and newsletters on Substack, creating a structured system.
  3. Automation in the process includes collecting YouTube videos, generating summaries with ChatGPT, and publishing a new post daily using scheduled tasks and Heroku, optimizing efficiency.

🔮 Three Underrated Technologies from the Future: Brain Recording; Deep Geothermal; IVF + Updates BCI; Clean Meat; LEO Internet++ #002

Let Us Face the Future • 138 implied HN points • 31 May 23
🕹 Technology Renewable Energy
  1. Brain recording technology is advancing with non-invasive methods, opening more possibilities for brain-computer interfaces.
  2. Digging deeper into the Earth for deep geothermal energy could provide a sustainable and abundant source of renewable energy.
  3. Assisted reproductive technologies like IVF are becoming more crucial as global fertility rates decline, impacting societies and economies.

"He spoke of computers with some awe"

Res Obscura • 134 HN points • 19 Mar 24
🕹 Technology Digital Technologies Podcasts History AI
  1. John von Neumann was pondering the idea of the simulation hypothesis back in the years just after World War II, earlier than commonly thought.
  2. Margaret Mead discussed the 'prehistory of AI' in a 1968 interview, touching on topics such as self-improving AI systems and the fear of computers.
  3. The conversation between John von Neumann and Margaret Mead offers insights into early considerations of global AI policy and cultural attitudes towards technology.

Apple and AI: Yet Another Example of Conway’s Law

Gad’s Newsletter • 17 implied HN points • 04 Aug 25
🕹 Technology Organizational Culture Tech industry Innovation Strategies Product Development Artificial Intelligence
  1. Apple's internal structure has led to problems in its AI development. The secretive and product-focused culture has made it hard for teams to communicate and work together effectively.
  2. Apple's AI efforts are hindered by its strict focus on hardware, limiting the power and capabilities of its AI models. This means they often can't compete with more powerful AI from other companies.
  3. To improve in AI, Apple may need to change its ways by being more open and collaborative. This could help bring together its research and product teams, leading to better AI outcomes.

A Dream Indeed

The Radar • 39 implied HN points • 25 Apr 23
💼 Business Financial Performance Corporate Governance Company Culture
  1. Authenticity in workplace culture leads to better results and engagement. Employees feel a sense of safety, invest more time and energy, and focus on long-term goals.
  2. Honesty is essential for building trust and equality within teams. Open communication loops prevent insularity and negative outcomes, like the Enron scandal.
  3. Companies often sacrifice their values for shareholder interests. Boards prioritize shareholder value over principles, leading to short-term cost controls and reduced transparency.

Car Rentals and Electric Cars are filing for Divorce, for now...

Startupology • 19 implied HN points • 05 Feb 24
💼 Business Transportation Market Analysis Sustainability Consumer behavior Financials
  1. Rental car companies and EVs face challenges like high repair costs and poor infrastructure.
  2. Hertz faced bankruptcy, then aimed to boost business with an EV fleet but is now selling off a third of it due to low demand and high repair costs.
  3. Issues with rental companies and EVs include maintenance costs, customer education, charging infrastructure, and consumer familiarity.

Two cheers for looser self-driving regulations

Alex's Personal Blog • 65 implied HN points • 18 Nov 24
🕹 Technology AI Development Self-driving cars Regulation Business impact Automotive
  1. Looser regulations for self-driving cars could be beneficial. Robots generally drive better than humans, so easing rules might help get safer self-driving cars on the road faster.
  2. Self-driving technology is making progress and has already proven to be a safer alternative to human drivers in many cases. It's a good time to support its expansion and keep improving safety.
  3. The current political climate may shift focus toward tech regulations, but it's important to balance safety with innovation in areas like self-driving vehicles.

California Home Sales "Sputter" in May; 4th Look at Local Markets

CalculatedRisk Newsletter • 23 implied HN points • 20 Jun 25
💰 Finance Economic Factors Market Trends Real Estate Inventory Analysis Sales Data
  1. California home sales decreased for the third month in a row, highlighting reduced buyer confidence due to high mortgage rates and economic uncertainty.
  2. Active home inventory reached a 67-month high, with a significant year-over-year increase in available listings, suggesting more choices for buyers.
  3. Despite a minor decline in home prices, the market is still facing challenges, with many areas reporting fewer homes sold compared to previous years.

Problem 58:Kth Largest Element in a Stream [Amazon]

Technology Made Simple • 79 implied HN points • 29 Sep 22
🕹 Technology Binary Trees Coding Recursion
  1. Problem involves finding the kth largest element in a stream, not the kth distinct element.
  2. The 'KthLargest' class has methods to initialize the object with 'k' and a stream of integers, and to add integers to the stream and return the kth largest element.
  3. Constraints include bounds on 'k', the length of the array, and the values in the array, with at most 10^4 calls to the 'add' method.

Is your AI strategy built for speed or stability? | Qodo’s Itamar Friedman

Dev Interrupted • 18 implied HN points • 22 Jul 25
🕹 Technology Trends AI Software Engineering Security
  1. When creating an AI strategy, know if your focus is on quick results or steady growth. This can affect how successful your team will be.
  2. It's important for developers to understand their code, even if AI is doing a lot of the work. This helps prevent issues when things go wrong.
  3. Companies need to prioritize security, as even small mistakes like weak passwords can lead to serious data breaches.

Intelligence and combinatorial complexity

Sunday Letters • 39 implied HN points • 27 Aug 23
🕹 Technology Human-computer interaction Cognitive Science Machine Learning AI Research Computational Theory
  1. More agents working together can create better intelligence than a single agent. This is surprising because we might think one advanced model is enough, but collaboration can enhance performance.
  2. Human-like patterns help improve AI performance. Just as we can review our work for errors, AI systems can use different modes to refine their outputs.
  3. Complex systems come with challenges like errors and biases. As AI gets more complicated, these issues tend to increase, similar to problems found in complex biological systems.

Embed Retrieve Win

Gradient Flow • 99 implied HN points • 29 Sep 22
🕹 Technology Machine Learning Data Infrastructure Generative models NLP AI Applications
  1. Embeddings are low-dimensional spaces that make AI applications faster and cheaper while maintaining quality.
  2. Vector databases are designed for vector embeddings and are becoming essential for modern search engines and recommendation systems.
  3. Generative models like diffusion models are gaining attention in the research community and offer great opportunities for exploration and innovative projects.

Why won't they give us the resources?

Sunday Letters • 159 implied HN points • 12 Jun 22
💼 Business Product Development Market Analysis Management Finance Strategy
  1. Deciding when to invest in new projects is tricky for companies because they need to balance costs and benefits. Too much spending too quickly can lead to financial problems.
  2. Finance teams focus on overall company health, like cash flow and profit margins. If a new project risks the company's profitability, they might hesitate to fund it.
  3. To get funding for new ideas, it's helpful to understand the financial risks and show how the project can improve profit margins. Developing strategies to lower risks can increase chances of approval.

✅ In praise of the press release

Wadds Inc. newsletter • 79 implied HN points • 02 Mar 23
💼 Business Digital marketing Communication Media Marketing Public Relations
  1. Press releases have been around for over 100 years and are still used because they are familiar to everyone involved, making them easy to understand and distribute.
  2. Even though there are many new ways to communicate, organizations keep using press releases because they serve multiple purposes and are required in some legal contexts.
  3. Modern approaches are being added to the traditional press release format, like incorporating social media elements, but the core importance of press releases in communication remains unchanged.

Episode 33: Better Built By Burkhard

burkhardstubert • 99 implied HN points • 01 Jan 23
🕹 Technology Software Development Testing Agile practices Productivity Continuous Delivery
  1. Test-Driven Development (TDD) helps developers get quick feedback while coding, improving overall project quality. This means fewer mistakes and less time spent fixing problems later.
  2. Using TDD can reduce the complexity of code by breaking down problems into smaller parts, making it easier to manage and understand.
  3. TDD encourages a culture of continuous improvement and teamwork, allowing all developers to take responsibility for the code they write. This leads to better collaboration and a more successful project.

sqlmesh model kinds - 1

davidj.substack • 59 implied HN points • 06 Dec 24
🕹 Technology Machine Learning APIs Software Development Data Modeling Databases
  1. There are different types of models in sqlmesh, such as full, view, and embedded models, each having unique functions and uses. It's important to choose the right model type based on how fresh or how often you need the data.
  2. SCD Type 2 models are useful for managing records that change over time, as they track the history of changes. This can make analyzing data trends much easier and faster.
  3. External models in sqlmesh allow you to reference database objects not managed by your project. This can simplify data modeling and documentation, as they automatically gather useful metadata.

Interconnects year in review: 2023

Democratizing Automation • 158 implied HN points • 27 Dec 23
🕹 Technology Model releases
  1. Interconnects experienced significant growth in subscribers and viewership in 2023
  2. The core themes of the blog in 2023 revolved around RLHF capabilities, Open LLM ecosystem progress, and LLM techniques
  3. 2024 predictions suggest that the operational landscape will remain similar to 2023 in the ML industry