The hottest Substack posts right now

according to Hacker News
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Another Step in my Mortgage Radicalization

Erdmann Housing Tracker • 147 implied HN points • 11 Jul 25
💰 Finance Housing Market Financial Crisis Investment Analysis Economic Trends
  1. The mortgage crackdown played a big role in causing the Great Recession. It disrupted the housing market and led to a lot of financial trouble.
  2. Historical patterns show that residential investment usually rises after the yield curve un-inverts, but that didn't happen in the late 2000s. Instead, investment remained low in 2025, unlike previous cycles.
  3. Today, the housing market is influenced by a complicated mix of factors, including high interest rates and potential recession signals. This could impact how homes are built and sold in the future.

Bear market or bull market? For Bitcoin it can be hard to tell.

Ecoinometrics • 275 implied HN points • 06 Oct 23
💰 Finance Inflation Economic Trends Financial Systems Housing Market Bitcoin
  1. It's difficult to determine if Bitcoin or Ethereum are in a bear or bull market by just looking at monthly returns.
  2. Countries with high inflation rates might benefit from transitioning to crypto-based monetary systems.
  3. There are signs indicating a potential crash in the US housing market due to factors like artificially inflated prices and high mortgage rates.

Celsius

Business Breakdowns • 275 implied HN points • 11 Jul 23
💼 Business Differentiation
  1. Celsius energy drink experienced a turbulent journey to success, from initial struggles to exponential growth.
  2. Celsius differentiates itself with science-based claims of increasing metabolism and burning calories.
  3. Despite a competitive energy drink market, Celsius's strong sales growth and partnership with Pepsi position it well for potential market share expansion and growth.
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Letter #90: Andrew Pastor (2021)

A Letter a Day • 275 implied HN points • 10 Jun 23
💼 Business Investing Management Innovation Leadership Company analysis
  1. Good investment ideas can come from unexpected sources, like a round of golf or a casual conversation.
  2. Successful investments often share common traits that aren't found through traditional stock screens.
  3. Applying specific filters, such as assessing risk and uncertainty, evaluating management decisions, and understanding company culture, can help in identifying valuable investment opportunities.

Deep Learning Weekly: Issue #319

Deep Learning Weekly • 275 implied HN points • 20 Sep 23
🕹 Technology Libraries & Code Industry MLOps Learning Papers & Publications
  1. Google's Bard Extension now scans Gmail, Docs, and Drive for answers with its AI chatbot.
  2. Optimizing LLMs from a dataset perspective involves strategies for finetuning using existing datasets.
  3. Influence Functions offer insights into large language model generalization, improving accuracy and robustness through dataset reinforcement.

Blockchain as a Database (Part 1)

Cryptocurrency and Friends • 275 implied HN points • 11 Jun 23
🕹 Technology Blockchain Governance Database Cryptocurrency
  1. A blockchain serves the purpose of allowing users to compute a copy of the same database with confidence.
  2. For worldwide agreement on a blockchain, a consensus protocol is needed to enable all parties to agree on new data blocks.
  3. Implementing rules for parsing data blobs on blockchains requires operational enforcement and governance to ensure consistency and security.

Lululemon

Business Breakdowns • 275 implied HN points • 23 May 23
💼 Business Retail Risk Management Strategy E-commerce
  1. Lululemon dominates luxury athleisure market with loyal customers and high-quality products.
  2. The company has strong revenue segments, with high margins in direct-to-consumer sales.
  3. Industry trends and growth opportunities in menswear and international markets support Lululemon's continued success.

🇮🇹 The Italian Tech Ecosystem - Rome Wasn't Built in a Day

Overlooked by Alexandre Dewez • 275 implied HN points • 04 May 23
💼 Business Startup funding
  1. The Italian startup ecosystem has shown growth with an increase in funding and the rise of unicorns like Scalapay and Satispay.
  2. Compared to other European countries, Italy's VC funding per capita is lower, indicating room for growth in the ecosystem.
  3. Italy's tech ecosystem is still in early stages, facing challenges like brain drain, lack of risk-taking mindset, and the need for stronger angel investor presence.

🤖 Internet is Beautiful

internetisbeautiful • 275 implied HN points • 12 Apr 23
🕹 Technology AI Websites
  1. Internet Is Beautiful shares interesting and useful websites from the internet
  2. Lofi Air Traffic Control mixes live air traffic with lofi hip-hop music
  3. Blend and Random Quotations are websites for creating product visuals and generating random quotes

TAM Volume

Sriram Krishnan’s Newsletter • 275 implied HN points • 18 Jul 23
💼 Business Entrepreneurship Sales Market Analysis Opportunities Customers
  1. When considering a market, focus not just on the total value but also on the volume of potential customers or personas.
  2. High volume of target customers provides more opportunities for learning and growth in a business.
  3. A larger TAM (volume) allows for more chances to adjust strategies and learn from mistakes compared to low volume markets.

After the Modern Data Stack: Welcome back, Data platforms

timo's substack • 275 implied HN points • 16 Aug 23
🕹 Technology Data Platforms Evolution Open Source Tools
  1. Data platforms are the next step after the Modern Data Stack, offering enhanced productivity, rapid iteration, and cost efficiency.
  2. The evolution of technology is not linear, but branches out in many directions, leading to multiple 'next' possibilities.
  3. New data platforms focus on integration, flexibility, and control, providing solutions for core issues like missing design, data quality, and integration challenges.

High churn, low LTV

Top of the Lyne • 275 implied HN points • 17 Jun 23
💼 Business Marketing Tech AI Growth Sales
  1. Generative AI company Murf uses behavioral AI to penetrate the enterprise market and boost self-serve conversions.
  2. Murf's AI engine helped increase enterprise conversions by 10% and boosted revenue closed by 20% for their sales team.
  3. The AI engine improved conversion rates by 7x for pro self-serve conversions during a Black Friday promotion.

Artificial Intelligences in the Guanzi and the Han Feizi

Daoist Methodologies • 275 implied HN points • 20 Mar 23
🕹 Technology Machine Learning Artificial Intelligence
  1. Confucians and Daoists have different approaches to learning: acquiring proven vs. eliminating disproven methods.
  2. Learning can occur without a brain: different entities like dogs, rivers, and markets learn without understanding.
  3. Systems can learn independently without human input, like in the case of artificial intelligence drawing from socio-political systems described in ancient texts.

The lies we tell ourselves

Known Unknowns • 275 implied HN points • 03 Apr 23
💰 Finance Regulations Policy Economy Banking Investments
  1. Interest rates may not return to normal, so be cautious. Collective DC plans might not be as ideal as they seem.
  2. Don't expect a recession to automatically solve inflation issues; it may not work as expected.
  3. Inflation brings uncertainty, making high real yields essential, and planning for Social Security reforms could involve risky collective DC plans.

Customer Persona Expansion

Sriram Krishnan’s Newsletter • 275 implied HN points • 06 Jun 23
💼 Business Startups Market Expansion Entrepreneurship Investing
  1. In early stages, focus on winning over a narrow set of customer personas first for startup success.
  2. Startups should avoid selling to multiple personas at once to prevent failure from spreading resources too thin.
  3. As resources grow, consider expanding to multiple personas to increase Total Addressable Market (TAM) and attract later-stage investors.

Beyond LLaMA: The Power of Open LLMs

Deep (Learning) Focus • 275 implied HN points • 17 Apr 23
🕹 Technology Chatbots Deep Learning Language Models Open Source
  1. LLMs are becoming more accessible for research with the rise of open-source models like LLaMA, Alpaca, Vicuna, and Koala.
  2. Smaller LLMs, when trained on high-quality data, can perform impressively close to larger models like ChatGPT.
  3. Open-source models like Alpaca, Vicuna, and Koala are advancing LLM research accessibility, but commercial usage restrictions remain a challenge.

Navigating the Software Engineering career ladders

system bashing • 275 implied HN points • 20 Jun 23
🕹 Technology Software Engineering Career development
  1. Software engineering career paths differ based on company size and age, so titles like "Senior Software Engineer" can vary widely.
  2. In early-stage startups, titles like "Senior" may simply imply a higher level of autonomy, not necessarily a specific rank.
  3. As companies grow, the tech team pyramid evolves, introducing new levels and roles like SDE1, SDE2, SDE3, VPs, and EMs.

Beliefs That Sterilize The World with Malcolm Collins

Moral Mayhem Podcast • 79 implied HN points • 10 Apr 24
📖 Philosophy Belief systems Humanity Ethics Cultural Studies Social theory
  1. Beliefs can shape how we view and interact with the world. It's important to recognize these beliefs and consider their impact.
  2. Certain beliefs may discourage people from having children, leading to societal challenges. We should think about how our views affect population growth.
  3. Discussing controversial ideas can help us understand different perspectives. Open conversations are key to finding solutions to big issues.