The hottest Substack posts right now

according to Hacker News
Category

GroupBy #32: Canva - Scaling to Count Billions, Ensuring Precision and Integrity: A Deep Dive into Uber’s Accounting Data Testing Strategies

VuTrinh. • 19 implied HN points • 23 Apr 24
🕹 Technology Cloud Computing Database Management Software Development Data Engineering Artificial Intelligence
  1. Canva's usage of creator content has skyrocketed, with data showing its growth doubling every 18 months. Managing the architecture to track this data is a significant challenge.
  2. Uber has developed strong testing and monitoring processes for its financial accounting data. This ensures accuracy and presents reliable external financial reports.
  3. With the rise of data lakehouses, utilizing tools like Apache Hudi and Paimon can enhance data storage and performance. These tools help build efficient and scalable data solutions.

How to be(come) a manager

Wednesday Wisdom • 123 implied HN points • 27 Nov 24
💼 Business Training Mentorship Management Leadership Career
  1. Becoming a manager means doing a different job, not just coding. You won't have much time for hands-on tasks, so you need to let that go and focus on managing your team instead.
  2. It’s important to find a mentor and connect with peers who can help you learn how to manage better. Talking with others in similar situations can give you fresh ideas and support.
  3. You need to learn the tools and skills required for management. Understanding processes, having tough conversations, and giving feedback are all key parts of being a successful manager.

Debanking's Dueling Narratives

Fintech Business Weekly • 89 implied HN points • 09 Feb 25
💰 Finance Policy Banking Cryptocurrency Investment Regulation
  1. Debanking is becoming a major topic, especially around the access of crypto companies to traditional banking. This issue has been fueled by public statements from influential figures like Marc Andreessen.
  2. There are claims of political bias in banking, particularly against conservative individuals and businesses. Some people argue that banks are closing accounts for political or ideological reasons, though banks deny this.
  3. Both Republicans and Democrats recognize debanking as a significant problem, but they have different views on its causes and solutions. Democrats are pushing for protections against unfair account closures, while Republicans want legislation to ensure fair access to banking.

Announcing Ubiquity Ventures III with $75 Million Focused on "Disciplined Deeptech"

Ubiquitous Thoughts • 39 implied HN points • 30 Jan 24
💼 Business Venture Capital Business Growth Entrepreneurship Tech Innovation Startup Investing
  1. Ubiquity Ventures III announced a $75 million fund focused on 'Disciplined Deeptech.'
  2. Ubiquity applies discipline in deeptech investing by balancing risk and innovation.
  3. Ubiquity shares deeptech best practices through Ubiquity University to help startup leaders grow.

The Equal Ventures Insurance Index - Q4 2023

Equal Ventures • 39 implied HN points • 30 Jan 24
💰 Finance Investing Mergers & Acquisitions Stock Market Industry Analysis Insurance
  1. Insurtech indices outperformed legacy peers in Q4 2023, showing strong recovery throughout 2023 but still below 2021 highs.
  2. Legacy brokers faced challenges in Q4 with tougher revenue growth comps, while insurtech companies in distribution & marketing excelled.
  3. P&C carriers had a positive Q4, demonstrating improved profitability expectations with lower combined ratios, notable improvements in personal lines carriers.
Get a weekly roundup of the best Substack posts, by hacker news affinity:

AI Red Teaming

Rod’s Blog • 39 implied HN points • 30 Jan 24
🕹 Technology AI Framework Security Ethics Compliance
  1. AI red teaming is crucial for ensuring AI systems are robust, secure, and aligned with human values and expectations.
  2. AI red teaming helps identify weaknesses and threats that could compromise the performance, functionality, or integrity of AI systems.
  3. AI red teaming aligns with responsible AI principles like fairness, reliability, safety, privacy, inclusiveness, transparency, and accountability.

Being an Engineering Manager at Meta

Leading Developers • 100 implied HN points • 14 Jan 25
🕹 Technology Software Development Company Culture Engineering Management Leadership Career development
  1. At Meta, managers are there to support their engineers, who have the freedom to choose their projects and set goals. This leads to a culture where trust and autonomy help engineers excel.
  2. Managers at Meta are evaluated based on the impact of their team and how they help individual contributors grow. It's important for managers to realize their role in coaching and supporting their engineers, rather than taking credit for their success.
  3. Meta encourages a fast-paced environment where developers can easily set up their work and start contributing quickly. This focus on efficiency comes from long-term investments in tools that make working faster and smoother.

Sam Altman Says GPT-5 Will Be ‘Okay’

The Algorithmic Bridge • 297 implied HN points • 30 Jan 24
🕹 Technology Expectations Marketing AGI Hype AI
  1. Sam Altman's messaging on AI and GPT-5 is intentionally confusing, swinging between hype and moderation.
  2. Hype and anti-hype make nuanced discussions difficult and highlight the importance of balanced messaging.
  3. There is speculation on whether Altman's statement on GPT-5 being 'okay' is due to high expectations or actual limitations of the technology.

How to ARCHITECT a search engine like Google Search[System Design Sundays]

Technology Made Simple • 99 implied HN points • 29 Jan 23
🕹 Technology Search Engine System Design Machine Learning Software Engineering
  1. Design complex systems by layering multiple smaller solutions for better results instead of focusing on individually engineered tasks.
  2. Building a search engine like Google involves accommodating various types of search results like images, text, gifs, and videos while ensuring search quality.
  3. Handling the massive scale of data in Google's search engine system involves using semi-supervised labeling techniques to manage unlabeled data efficiently.

The Power of Generativity in Platform Systems

Platform Papers • 39 implied HN points • 30 Jan 24
💼 Business Ecosystems Platforms Leadership Regulation Innovation
  1. In platform ecosystems, generativity plays a crucial role in driving innovation by allowing third-party developers to continuously create new offerings that enhance the core product's value over time.
  2. Balancing generativity is essential for platform success; too much generativity can lead to free-riding behavior where developers exploit the efforts of others, while the right amount can signal growth opportunities and encourage high-quality contributions.
  3. As platform ecosystems mature, business leaders and policymakers must navigate the challenges of maintaining a balance between positive reputation spillover effects and negative free-rider effects to ensure sustained innovation and user satisfaction.

Reflections from Our 2025 AGM - $1T Private Companies, AI Fundraising, and Outbound Sourcing

Venture Reflections • 9 implied HN points • 01 Dec 25
💼 Business Fundraising Venture Capital Startups AI SOURCING Investment strategy Market Trends
  1. Large VC funds can still generate strong returns if the ceiling for private-company outcomes expands a lot—imagine private companies reaching $1 trillion, which makes the numbers work.
  2. AI companies are setting the fundraising bar because rapid, AI-driven growth attracts VCs hunting for outliers, so investors prefer to back things already showing steep traction rather than hope slow growers will accelerate.
  3. Outbound sourcing is now a standard tool and founders have learned to send the right signals, so being early isn’t enough—outreach must be thoughtful, specific, and add real value to get attention.

UniMS-RAG: Unified Multi-Source RAG for Personalised Dialogue

Cobus Greyling on LLMs, NLU, NLP, chatbots & voicebots • 39 implied HN points • 30 Jan 24
🕹 Technology Human-computer interaction Data science Machine Learning Natural Language Artificial Intelligence
  1. UniMS-RAG is a new system that helps improve conversations by breaking tasks into three parts: choosing the right information source, retrieving information, and generating a response.
  2. It uses a self-refinement method that makes responses better over time by checking if the answers match the information found.
  3. The system aims to make interactions feel more personalized and helpful, leading to smarter and more relevant conversations.

Sky Mavis Re-Lock & $RON Circulating Supply Update

Ronin’s Newsletter • 98 implied HN points • 20 Jan 25
🔮 Crypto Smart Contracts Tokenomics Blockchain Decentralization Digital Assets
  1. Sky Mavis is making changes to the $RON token supply to make sure the circulating supply matches what's in their whitepaper. By January 27th, the number of $RON tokens that are considered in circulation will go up to 61.9%.
  2. They are moving unlocked $RON tokens from some wallets to new ones, which will help increase transparency. This means that more tokens will be available for use and tracking will be clearer.
  3. Sky Mavis is also re-locking about 75% of their tokens for two years, showing their confidence in the project. This way, they are ensuring stability and commitment to the future of the Ronin network.

Traditional media outlets are under-monetizing their YouTube channels

Simon Owens's Media Newsletter • 274 implied HN points • 23 Feb 24
💼 Business Advertising Marketing Monetization Media Entrepreneurship
  1. Traditional media outlets are not fully utilizing the monetization potential of their YouTube channels, missing out on significant revenue opportunities.
  2. Newsletter advertising has experienced growth despite challenges faced by the larger advertising industry, with brands noting higher engagement and return on investment.
  3. John Oliver's YouTube channel for Last Week Tonight showcases high engagement with fewer videos compared to other late night shows, yet HBO is not directly monetizing it, highlighting a missed opportunity for revenue.

Weekly Dose of Optimism #123

Not Boring by Packy McCormick • 116 implied HN points • 06 Dec 24
🕹 Technology Neuroscience AI Energy Weather Defense
  1. E11 Bio is using a creative way to map the brain by injecting viruses that label neurons. This could help us understand the brain better and develop new treatments for neurological issues.
  2. A new study shows deep brain stimulation can help restore walking in people with spinal cord injuries. This method could lead to better recovery options for those with movement difficulties.
  3. Meta is looking to use nuclear energy to power its operations. This move shows a commitment to sustainable energy and could set a trend for other tech companies to follow.

1/29/2024: Evergrande is Ordered to Liquidate

depression2022 • 39 implied HN points • 29 Jan 24
💰 Finance Real Estate Investments Financial impact Economic Growth Market Trends
  1. A Hong Kong court orders China's Evergrande Group to liquidate, impacting creditors and homebuyers.
  2. Evergrande's $300 billion debts are massive, rivaling Hong Kong's GDP.
  3. The Chinese property market is distressed with major developers facing default, potentially affecting capital market accessibility for Chinese firms in the future.

Weekly Notes

Rethinking Software • 149 implied HN points • 23 Sep 24
🕹 Technology Software Development Product Management Agile Methodology Data Analysis Team Dynamics
  1. Story points are basically just hidden time estimates for tasks in software development. Understanding this can help with better planning and predicting when a project will be finished.
  2. Product management should be like a party host, making sure developers and customers communicate and enjoy their time together. This creates a better experience for everyone involved.
  3. There are ways for companies to run without traditional management, like the tomato processor Morning Star. This might be a model to explore for improving the software industry's workflow.

How Apple became Warren Buffett's best investment.

Jon’s Newsletter • 119 implied HN points • 06 May 23
💼 Business Market Analysis Consumer behavior Investing Leadership Corporate strategy
  1. Warren Buffett sees Apple as the best business in his investment portfolio, worth over $150 billion. His comfort with Apple represents a big change since he used to avoid tech stocks.
  2. Buffett understands consumer loyalty to Apple products, emphasizing how people might give up a car before their iPhone. This strong demand creates a protective advantage for Apple.
  3. Tim Cook, Apple's CEO, is praised by Buffett for his leadership and shareholder respect. Apple's strong financials, like stock buybacks and dividends, benefit Buffett's company, Berkshire Hathaway.

How Amazon makes Machine Learning Trustworthy[System Design Sundays]

Technology Made Simple • 79 implied HN points • 20 Mar 23
🕹 Technology AI Machine Learning Systems Design
  1. Privacy-preserving Machine Learning keeps the input secret by altering certain details.
  2. Federated Learning allows Amazon to update models without sending data to their centers, saving costs and maintaining privacy.
  3. Amazon ensures fairness in ML by balancing biases in datasets through oversampling and data substitutions.

MacWorld Interviews Apple CEO John Sculley (1987)

Computer Ads from the Past • 128 implied HN points • 13 Nov 24
🕹 Technology Product Development Innovation Business strategy Information Technology
  1. Apple's strategy is about creating new markets, not just competing for existing ones. They want to stand out by innovating and providing new technologies.
  2. The future of personal computing is focused on making knowledge more accessible to everyone. Apple's vision includes tools that help people learn and be more creative.
  3. The transition to powerful personal computers will change how we interact with information. Future devices will be more user-friendly and tailored to individual needs.

Bringing your whole self to work with Pride Pledge

A B’Old Woman • 199 implied HN points • 01 Dec 22
💼 Business Employee engagement Corporate culture Diversity
  1. The Pride Pledge aims to help businesses show support for LGBTQIA+ communities, but it's also a money-making venture. Many companies pay for services like consultations and training to get a badge of approval.
  2. Diversity in the workplace can lead to both positive and negative experiences. It's important to recognize that bringing your whole self to work may not feel safe for everyone, especially those with differing views.
  3. There is a strong focus on the benefits of a diverse workplace, like improved employee engagement and brand reputation, but there is a need for real statistics to back up these claims.

How LLMs can self-improve on instruction-following

TechTalks • 39 implied HN points • 29 Jan 24
🕹 Technology AI Language Models Machine Learning Technology Tools
  1. A new technique called Self-Rewarding Language Models helps LLMs improve on instruction-following tasks by creating and evaluating their own training data.
  2. SRLM starts with a base model and seed dataset for fine-tuning instructions, generates new examples and responses, and ranks them using a special prompt.
  3. Experiments show that SRLM enhances model performance in instruction-following and outperforms some existing models on the AlpacaEval benchmark.

Console #170 -- An Interview with Alex of DocuSeal - Open source DocuSign alternative

Console • 413 implied HN points • 13 Aug 23
🕹 Technology AI Web Development Programming Software Development Open Source
  1. DocuSeal is an open source platform for digital document signing as an alternative to DocuSign.
  2. Ruby on Rails is used as the backend for DocuSeal, offering an easy and efficient development process.
  3. The developer of DocuSeal is motivated by community interest, aims for wider adoption before monetization, and plans to prioritize user feedback for future project development.

Synthetic data: Anthropic’s CAI, scaling, OpenAI’s Superalignment, tips, and open-source examples

Democratizing Automation • 332 implied HN points • 29 Nov 23
🕹 Technology Applications AI Data Models Methods
  1. Synthetic data is becoming more important in AI, with a focus on removing human involvement.
  2. Proponents believe that using vast amounts of synthetic data can lead to breakthroughs in AI models.
  3. Open and closed communities are both utilizing synthetic data for different end goals.

Swinburne's Argument Against Suicide

Going Awol • 119 implied HN points • 30 Jan 23
📖 Philosophy Logic God Suicide Religion Ethics
  1. Swinburne's argument against suicide is based on the idea that if God exists, taking one's own life is ungrateful towards the gift of life given by God.
  2. Swinburne's argument falls short in the face of extreme suffering, where ending one's life may not be a violation of gratitude towards God, as seen in cases like severe pain or incurable genetic conditions.
  3. The premise that suicide is always wrong due to ingratitude to God is questionable, as destroying a harmful gift might be what a loving benefactor would want in certain extreme circumstances.

Models of Humans

10-year Horizon • 159 implied HN points • 24 Apr 23
📖 Philosophy Mind Self Consciousness Existence Reality
  1. Learning often involves modeling others' behaviors, beliefs, and ways of thinking. We unconsciously create mental models of people we admire or learn from.
  2. Our brains and AI models share similarities in how they learn and adapt, going through training phases to recognize patterns and predict outcomes.
  3. Exploring and understanding our inner sub-personalities through techniques like Internal Family Systems can help us manage relationships with these models for personal growth.

The Platform Risk

Tiny Empires • 49 implied HN points • 29 May 25
💼 Business Risk management Marketing Entrepreneurship Digital Media Strategy
  1. Don't rely too much on platforms you don't own because they can change rules suddenly. Build your own website and email list to keep control.
  2. Create a safety net by spreading your revenue across different platforms. This way, if one platform changes, your business won't fall apart.
  3. Always stay in touch with your audience through multiple channels. This keeps you connected, even if some platforms go away.

You’re eligible to earn USDC by creating content 👀

Ronin’s Newsletter • 36 implied HN points • 19 Jul 25
🔮 Crypto Blockchain Earnings Content creation Games Decentralization
  1. The Ronin Creator Rumble is a contest where creators can win up to $2,000 in USDC every week by making content about Ronin. It's open to anyone, not just program members!
  2. To join, you can either place in the Top 25 on the cookie.fun leaderboard or submit original video content through a form. It's a fun way to get recognized for your creativity.
  3. Your content should be original and positive, focusing on Ronin's ecosystem like games or products. Get creative and share your videos on social media for a chance to win!

What is Data Orchestration and why is it misunderstood?

The Orchestra Data Leadership Newsletter • 39 implied HN points • 28 Jan 24
🕹 Technology Data Governance Data Management Workflow Orchestration Data Orchestration
  1. Data orchestration is often confused with workflow orchestration, but it involves more than just triggering and monitoring tasks; it includes reliably and efficiently moving data into production.
  2. Reliably and efficiently releasing data into production is complex and involves elements like data movement, transformation, environment management, role-based access control, and data observability.
  3. Implementing end-to-end and holistic data orchestration offers transformative benefits such as intelligent metadata gathering, data lineage, environment management, data product enablement, and cross-functional collaboration for scalable data operations.

I got viral on Instagram. 🫠 What happened?

Business & Marketing with Nika • 19 implied HN points • 22 Apr 24
💼 Business Marketing Social media Engagement Content creation
  1. Using humor in your content can really boost engagement. People love relatable jokes and funny visuals.
  2. A good call-to-action encourages your audience to interact. Asking them to tag friends can help spread your post.
  3. Timing matters! It's beneficial to wait before posting again if your current post is doing well, so it can gain more traction.

No more shell scripts!

Wednesday Wisdom • 94 implied HN points • 29 Jan 25
🕹 Technology Open Source Software Development Programming Languages Automation
  1. Shell scripts used to be great for automating tasks, but they have many limitations now. New programming languages do a better job and are more reliable.
  2. The Unix system made software development easier with tools and commands that could be combined. This modular approach set a solid foundation for coding.
  3. While shell scripts were revolutionary, modern programming languages and libraries have improved our ability to write better and more efficient programs.

How influencers are stealing from you[Finance Fridays]

Technology Made Simple • 79 implied HN points • 18 Mar 23
💰 Finance Scams Courses Economics Influencers
  1. Influencers often sell false promises to make money, especially in fields like AI and machine learning.
  2. Scam courses claim to provide huge returns with minimal effort or investment, but in reality, expertise is developed through practice and experience.
  3. Beware of 'super simple' methods that promise quick success; if something is easy and profitable, there will be a lot of competition, driving down profits.