Scott Alexander's April 2026 links roundup covers diverse topics including Venn diagram complexity, flag desecration laws, AI developments, political analysis, scientific studies, and various cultural curiosities. Longer summary

This monthly links post compiles interesting articles, studies, and observations from across the internet in April 2026. Major themes include AI progress and policy (including discussions of AI alignment, capabilities, and regulation), political developments (Trump administration actions, election analysis), scientific findings (from evolutionary psychology to medical treatments), and various cultural oddities. Scott provides brief commentary on each link while noting that he hasn't independently verified all claims and that commenters typically find errors in a few links per post. Shorter summary

Scott Alexander provides fifteen pieces of writing advice for aspiring bloggers, emphasizing authenticity, avoiding microdishonesty, mastering basic disciplines before breaking rules, and finding original angles on common topics rather than recycling blogosphere content. Longer summary

Scott Alexander offers fifteen pieces of writing advice for participants in Lighthaven's Inkhaven blogging bootcamp, covering topics from avoiding microdishonesty to finding original angles on common subjects. He discusses the importance of authenticity in writing, warns against clichés while acknowledging their ubiquity, and introduces the concept of 'mountaintop disciplines'—strict writing rules to master before breaking them. The advice spans structural concerns like avoiding tangled sentences and the traditional five-paragraph essay, to strategic considerations like injecting first-hand knowledge rather than recycling blogosphere topics, and tactical tips about using conflict and mystery to maintain reader interest. Throughout, Scott emphasizes that good writing comes from genuine contact with the world and honest expression of one's actual thoughts, rather than attempting to say what seems presentable or expected. Shorter summary

Scott argues that taking the Giving What We Can Pledge to donate a fixed percentage of income is the single most impactful decision most people can make, eliminating donation stress while maximizing charitable impact. Longer summary

Scott advocates for taking the Giving What We Can Pledge, arguing that committing to donate a fixed percentage of income (typically 10%) to effective charities is one of the most impactful decisions someone can make. He describes how he used to feel stressed and irrational about charitable giving before discovering the pledge, and explains that having a predetermined commitment eliminates the guilt and decision fatigue of responding to individual fundraising appeals. The post emphasizes that for most people, financial donations are their most powerful tool for changing the world, and that making a binding pledge - rather than relying on willpower for each donation - is the key to actually following through on altruistic values. Shorter summary

A detailed investigation of the Sun Miracle of Fatima in 1917, where 70,000 people witnessed the sun appear to spin, change colors, and fall to earth, analyzing witness testimonies, skeptical explanations, and similar phenomena at other Marian apparition sites. Longer summary

Scott conducts an extensive investigation into the 1917 Miracle of the Sun at Fatima, where tens of thousands witnessed what appeared to be the sun spinning, changing colors, and falling to earth. He examines approximately 60 primary testimonies, evaluates common skeptical explanations (optical phenomena, weather events, mass hallucination), and documents similar sun miracles at other Marian apparition sites worldwide. Scott then critiques Dalleur's theory about distant witnesses and shadow analysis, explores why more people don't see these phenomena normally, and proposes a tentative materialist explanation involving a rare optical illusion modulated by cloud cover and social priming. The post ends by suggesting research directions for those interested in further investigation. Shorter summary

Scott shares his monthly collection of 56 interesting links and developments from July 2025, covering AI, politics, science, and culture, with brief commentary on each. Longer summary

This is a collection of 56 interesting links and news items from July 2025, covering topics from AI development to politics to scientific research. The post includes updates on OpenAI's status, developments in AI regulation, new medical treatments, cultural trends, and various scientific findings. Scott maintains his usual style of presenting these with brief commentary and occasional humor, while being careful to note that he hasn't independently verified all links. Some notable items include Trump's "Big Beautiful Bill", new AI safety developments, trends in social media usage, and various medical breakthroughs. Shorter summary

Scott analyzes how Trump's damaging tariffs are not just a personal quirk but a predictable result of right-wing populism's strategy of bypassing institutional checks, arguing this makes the left a better starting point for reform despite its own flaws. Longer summary

Scott argues that Trump's tariffs are not just a personal quirk but a predictable consequence of right-wing populist ideology, which seeks to bypass institutional checks and balances. He explains how populism's strategy of circumventing institutions and cultivating loyalty makes it impossible to stop bad policies when they arise. The post compares this to how the institutional left would handle similar situations, uses the current tariff situation as evidence that the populist approach is more dangerous, and concludes that the left, despite its own problems, might be a better starting point for reform. Shorter summary

A collection of 41 interesting links and news items from April 2025, covering AI, politics, culture, and science, with Scott's commentary on each. Longer summary

This is a links roundup post featuring various interesting news, studies, and curiosities from April 2025. The post covers a wide range of topics including AI developments (particularly around OpenAI and truth-seeking AI), political updates (about Trump, immigration policy, and minimum wage effects), cultural items (like etymology of cowboy terms and medieval perception), and scientific findings. Scott maintains a light, sometimes humorous tone while sharing these diverse pieces of information, occasionally adding his own analysis or perspective on controversial topics. Shorter summary

Scott shares 50 diverse links covering topics from AI developments to policy changes, with commentary on current events, research findings, and societal trends. Longer summary

In this monthly links roundup, Scott Alexander covers a wide range of topics including AI developments, public policy changes, scientific research, and current events. The post follows a numbered format presenting each item with Scott's characteristic analysis and often humorous commentary. Notable topics include AI safety developments, changes in government policy, climate change updates, and various social and technological trends. The tone alternates between analytical and personal reflection, particularly when discussing potentially concerning political developments. Shorter summary

Scott responds to comments and criticisms of his post about Tegmark's Mathematical Universe Hypothesis and its implications for arguments about God's existence, addressing technical points about Boltzmann brains, simplicity measures, and philosophical objections. Longer summary

Scott Alexander reviews and responds to comments on his previous post about Tegmark's Mathematical Universe Hypothesis. He addresses technical criticisms about Boltzmann brains and probability measures, explains why the theory requires simplicity weighting, and defends his claim that it defeats many arguments for God's existence. He engages with philosophical objections about falsifiability and originality, arguing that falsifiability is not the only way to evaluate theories and dismissing claims that the ideas are just reinventing ancient philosophy. Shorter summary

Scott Alexander explores how Max Tegmark's mathematical universe hypothesis provides counterarguments to classical proofs of God's existence, suggesting that the existence of mathematical objects alone could explain the universe without requiring a deity. Longer summary

Scott Alexander discusses how Max Tegmark's mathematical universe hypothesis (which states that all possible mathematical objects exist) provides counterarguments to the main classical proofs of God's existence. He explains how conscious beings would inevitably find themselves in universes capable of supporting consciousness, and how this explains away arguments like fine-tuning and first cause. The post then explores the challenge of defining 'simplicity' in this context, comparing it to the challenge theists face in defining God. Finally, Scott suggests that even if Tegmark's hypothesis is wrong, its existence proves there may be many undiscovered explanations for the universe beyond just God. Shorter summary

Scott argues that debates about prioritizing Americans over foreigners in the PEPFAR controversy miss the point, as cancelled foreign aid money wouldn't automatically fund effective domestic programs but would instead be spent much less efficiently. Longer summary

Scott Alexander critiques recent discussions about PEPFAR, a successful AIDS program in Africa that was briefly paused. He argues that debates about whether we should prioritize Americans over foreigners miss the key point: money saved from canceling highly effective programs like PEPFAR wouldn't automatically go to equally effective domestic programs. Instead, it would likely fund much less effective initiatives or get lost in general federal spending. The post explains how government spending tends to be inefficient, and argues that even if you value American lives more than foreign ones, the effectiveness gap between PEPFAR and likely alternative uses of the money is so large (around 100x) that you would need to value foreign lives at literally zero to justify canceling it. Shorter summary

Scott shares 55 interesting links covering topics from AI poetry to religious movements, including updates on various projects, unusual historical events, and current developments in technology, politics, and society. Longer summary

This is Scott's monthly links post for December 2024, collecting various interesting stories and developments. The links cover a wide range of topics, from Steven Seagal's bizarre life trajectory to developments in AI and technology, including updates on previous ACX topics and grants. Many links relate to ongoing discussions in the rationalist and EA communities, including debates about effective altruism and charitable giving. The post also includes various curiosities from history, culture, and current events, with Scott often providing his own analysis or perspective on the items shared. Shorter summary

Scott Alexander endorses Harris, Oliver, or Stein for the 2024 US presidential election, arguing against Trump's authoritarianism while acknowledging and countering arguments that Democrats may be more subtly authoritarian. Longer summary

Scott Alexander endorses Kamala Harris, Oliver, or Stein for the 2024 US presidential election, recommending Harris in swing states and Harris or a third-party candidate in safe states. He argues against Trump primarily on the grounds of authoritarianism, comparing the threat to Hugo Chavez's Venezuela. Scott acknowledges the strongest counter-argument that Democrats may be more subtly authoritarian, but ultimately rejects it for four reasons: the importance of punishing clear norm violations, current political headwinds favoring the right, personal integrity, and Trump's own authoritarian tendencies. The post ends with a reflection on the psychological tendency to view elections as a two-character drama between oneself and the Democratic Party, urging readers to consider the full comparison between candidates. Shorter summary

A compilation of 50 diverse news items and links from September 2024, covering topics from politics and economics to science and technology. Longer summary

This post is a compilation of 50 diverse links and news items from September 2024. It covers a wide range of topics including politics, science, technology, economics, and social issues. Some notable items include discussions on kidney donation compensation, personality genetics, fertility rates in Israel, drug decriminalization in Oregon, AI regulation in California, and various political and economic analyses. The post also includes commentary on recent studies, books, and social phenomena. Shorter summary

Scott Alexander refutes Freddie deBoer's argument against expecting major events in our lifetimes, presenting a more nuanced approach to estimating such probabilities. Longer summary

Scott Alexander responds to Freddie deBoer's argument against expecting significant events like a singularity or apocalypse in our lifetimes. Alexander critiques deBoer's 'temporal Copernican principle,' arguing that it fails basic sanity checks and misunderstands anthropic reasoning. He presents a more nuanced approach to estimating probabilities of major events, considering factors like technological progress and population distribution. Alexander concludes that while prior probabilities for significant events in one's lifetime are not negligible, they should be updated based on observations and common sense. Shorter summary

Scott Alexander summarizes and responds to reader comments on his article about Matt Yglesias and Nietzschean philosophy, exploring various perspectives on master and slave morality. Longer summary

This post highlights comments on Scott Alexander's article about Matt Yglesias and Nietzschean philosophy. It covers various perspectives on master and slave morality, critiques of different thinkers mentioned in the original post, and other related topics. The comments explore nuances in Nietzsche's philosophy, discuss the applicability of these concepts to modern society, and debate the merits of different moral frameworks. Shorter summary

Scott Alexander examines Nietzsche's concepts of 'master morality' and 'slave morality', analyzing their modern manifestations and exploring potential compromises between these opposing moral frameworks. Longer summary

Scott Alexander explores the concepts of 'master morality' and 'slave morality' introduced by Nietzsche, analyzing their manifestations in modern society and various ideologies. He discusses how these moral frameworks are reflected in figures like Ayn Rand, Andrew Tate, and Matt Yglesias, as well as in movements like effective altruism. The post examines the tensions between these moral systems and attempts to find a balance or transcendence of the dichotomy, ultimately suggesting that a cyclical, civilization-building approach might offer a meaningful compromise. Shorter summary

Scott Alexander presents a satirical 2024 presidential debate between Biden and Trump, featuring increasingly absurd positions on various issues. Longer summary

Scott Alexander moderates a fictional presidential debate between Joe Biden and Donald Trump for the 2024 election. The debate takes surreal turns as both candidates express increasingly bizarre views on topics like states' existence, abortion, wokeness, conspiracy theories, and immigration. Biden expresses solipsistic doubts about reality, while Trump argues for an expanded notion of America based on anthropic reasoning. The debate highlights the absurdity of political discourse through exaggerated positions and philosophical tangents. Shorter summary

A wide-ranging collection of 40 news items and interesting facts, covering AI, politics, science, economics, and culture, with the author's commentary. Longer summary

This post is a collection of 40 diverse links and news items covering topics such as AI developments, politics, science, technology, economics, and culture. It includes updates on OpenAI and Google's AI projects, discussions on religious phenomena, analyses of social and economic trends, and various interesting facts and anecdotes. The author provides commentary and context for many of the items, often with a mix of humor and critical analysis. Shorter summary