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20 September
Software engineer and educator; creator of Testing Library and of the EpicWeb.dev and EpicReact.dev courses.
Another thing Kody does for me: adjusts my thermostat based on upcoming weather Related
17 September
Australian moral philosopher, Professor of Bioethics emeritus at Princeton University; author of Animal Liberation, Practical Ethics and The Life You Can Save.
In this episode of Lives Well Lived, we speak with physicist and philosopher @seanmcarroll.bsky.social about the many-worlds interpretation of quantum mechanics, the mystery of consciousness, whether morality is constructed, and how we create meaning in a universe without an objective purpose. Related
15 September
Writer of the personal-finance blog Of Dollars And Data and author of Just Keep Buying and The Wealth Ladder. Chief Operating Officer at Ritholtz Wealth Management.
x.com The optimal portfolio of the last 54 years had 36% U.S. housing. Run the same optimizer only through 1998 and U.S. housing doesn't appear at all. My latest on the best portfolio over the last 50 years (and why it's an illusion): ofdollarsanddata.com
America Related
Blog What Was the Best Portfolio Over the Last 50 Years? A few months ago, I analyzed U.S. stock returns over the last century. Today, I'm going to determine the best portfolio over the last 50 years among the following asset classes: U.S. Stocks International Stocks Real Est…
America Related
Web developer and writer; an early GitHub employee, author of speaking.io and of widely read essays on startups and product.
Bluesky Added a new runway feature to signed.com to sort which of my portfolio companies are facing cash crunches. (As a side note, always fascinated by startups who run out of cash and haven't talked to their investors about it. That's what they're there for, to help!) startups Related
x.com Added a new runway feature to @signedco to sort which of my portfolio companies are facing cash crunches. (As a side note, always fascinated by startups who run out of cash and haven't talked to their investors about it. That's what they're there for, to help!) startups Related
12 September
Technologist and entrepreneur; former CTO of Threadless and chief technology officer of the 2012 Obama re-election campaign.
9 September
Mathematician at UCLA, working mainly in harmonic analysis and partial differential equations. Writes What's new, a long-running blog on their research, open problems and expository notes.
Javier Gomez-Serrano will give a special lecture at Harvard this Friday on recent developments in fluid mechanics: cmsa.fas.harvard.edu
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Founded Bridgewater Associates in 1975 and led it until stepping back from control in 2022. Author of Principles, The Changing World Order and How Countries Go Broke; publishes economic analysis at economicprinciples.org.
Almost every technology boom creates a bubble, then a bust, whether it’s railroads, the Industrial Revolution, or the late 1920s. Think about the late '20s: electricity, refrigeration, telephones, radios, airplanes, and cars were all emerging at once. Naturally, people wanted to invest in these miracles. The danger is that people fail to distinguish the miracle from the investment. A technology can be truly transformative, but if the stocks are priced too high or bought on debt, you get a crash. That is the mechanics behind how bubbles form and burst. New technology will be great, there is no… energy Related
Physicist and science communicator. Writes Backreaction and makes videos explaining new physics and astronomy results, frequently to argue that the headline about them overstates the case.
Physicists should put together a list of mathematically well-defined problems that could advance the field. Such as, eg, what constitutes a low-temperature superconductor, what are the lattice conditions for cold fusion (or why do they not exist), what is a local completion of quantum mechanics, what is the simplest (in terms of computational complexity) way to obtain the masses and coupling constants of the standard model, what is the UV-completion of MOND or why isn't there any, is there any provably UV-finite version of quantum gravity, etc etc Related
8 September
Investment researcher and engineer who runs Lyn Alden Investment Strategy, writing on macroeconomics, currency systems and equity analysis.
I was an early reader of The Awesome Portfolio. Definitely a good one, like the rest of his library. Give it a read! Quoting @dailydirtnap The Awesome Portfolio is out in the wild! So much gratitude, for everything. Related
Swedish software developer writing about tooling, working from home and running a software business at seastone.io.
"Good Timber", a poem I keep going back to: the trees that fight for light in rough weather become the strong timber; the ones with easy sun and rain stay scrubby. People and teams seem to go the same way. Comfort is nice. It just doesn't build much. Related
6 September
Co-founder of AQR Capital Management; quantitative investor and writer.
Can you design a portfolio that is behind January through September but in the fourth quarter kicks the hell out of everyone? Quoting @shortsqueeznews BREAKING: Several Knicks players, such as Jalen Brunson, Josh Hart, and Mikal Bridges have reportedly become Goldman Sachs Private Wealth Management clients to reunite with former Villanova teammate Matt Kennedy as their financial advisor. The Villanova-to-New York Knicks pipeline runs deep. Related
4 September
Director of institutional asset management at Ritholtz Wealth Management. Writes the A Wealth of Common Sense blog and co-hosts the Animal Spirits podcast with Michael Batnick.
Good question about having a mid-life crisis w/your investments It's harder to sit through stock market losses w/a bigger portfolio The next stock market crash will be a lot more painful for a new group of wealthier investors w/more $$$ at stake Related
3 September
Co-founder of WordPress and founder of Automattic; blogs at ma.tt.
BM Snaps Burning Man really tests my mantra, “There’s no bad weather, only bad clothing.” But it’s true! For one week, it’s the most interesting art and technology playground in the world, creativity unbound. As a photographer,…
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Director of institutional asset management at Ritholtz Wealth Management. Writes the A Wealth of Common Sense blog and co-hosts the Animal Spirits podcast with Michael Batnick.
From one piece
How to Invest When Your Portfolio Gets Bigger
2 beliefs, in the piece's order there
1 September
Mathematical biologist; Senior Lecturer in the Department of Mathematical Sciences at the University of Bath and author of The Maths of Life and Death and How to Expect the Unexpected.
x.com “The number of suspected illegal discharges of raw sewage into rivers and seas by water companies during dry weather increased significantly during the first five months of 2026.” Why are we still seemingly powerless to do anything about this? theguardian.com
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Bluesky “The number of suspected illegal discharges of raw sewage into rivers and seas by water companies during dry weather increased significantly during the first five months of 2026.” Why are we still seemingly powerless to do anything about this? Related
25 August
Writer of the personal-finance blog Of Dollars And Data and author of Just Keep Buying and The Wealth Ladder. Chief Operating Officer at Ritholtz Wealth Management.
From one piece
Why I Was Wrong to Be Bearish on U.S. Stocks
2 beliefs, in the piece's order there
24 August
Indian software developer and prolific blogger on PHP, Laravel and JavaScript; open-source enthusiast publishing near-daily at amitmerchant.com.
Cool stuff I stumbled upon lately on the internet: https://t.co/wbWCvAzz8O - Letters of Love https://t.co/i8ajliOOwt - Deterministic geometric blobatars https://t.co/eK5LP1WYyE - Agent behavior https://t.co/WTGC9P1ZQK - Cool portfolio Related
17 August
Physicist and science communicator. Writes Backreaction and makes videos explaining new physics and astronomy results, frequently to argue that the headline about them overstates the case.
14 August
Moroccan senior frontend developer writing at smakosh.com; builds side projects and client work under Smakosh LLC.
12 August
American open-source program lead working on WordPress; a WordPress core contributor and release lead who writes at jeffpaul.com.
Google Ads for AI chats Almost a year after predicting that AI monetization might resemble Google Ads, ChatGPT is rolling out ads with familiar mechanics like targeting, bidding, and paid placement alongside AI-generated answers. jeffpaul.com
OpenAI Google Related
Lawyer and everyday-carry gear reviewer who publishes scored knife, flashlight and multitool reviews at Everyday Commentary.
10 August
Australian moral philosopher, Professor of Bioethics emeritus at Princeton University; author of Animal Liberation, Practical Ethics and The Life You Can Save.
In this episode of Lives Well Lived, we speak with physicist and philosopher @seanmcarroll.bsky.social about the many-worlds interpretation of quantum mechanics, the mystery of consciousness, whether morality is constructed, and how we create meaning in a universe without an objective purpose. Related
Founded PSPDFKit in 2011 and ran it for a decade. Came back from a break to work on AI agents — the OpenClaw project, and OpenAI, joined in February 2026. Writes at steipete.me.
9 August
Cartoonist and comics theorist, author of Understanding Comics, Reinventing Comics, Making Comics and the graphic novel The Sculptor.
Professor of economics at George Mason University and Bartley J. Madden Chair at the Mercatus Center. Co-writes the blog Marginal Revolution and co-authors the textbook Modern Principles of Economics with Tyler Cowen.
Their words
Who would have thought that someone could make a gripping movie about predicting the weather? Nevertheless, Pressure delivers.
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marginalrevolution.com
8 August
Co-founder, chairman and chief investment officer of Ritholtz Wealth Management. Hosts the Masters in Business podcast for Bloomberg and wrote How NOT to Invest.
Their words
Be sure to check out our Masters in Business next week with Dr. Ankur Crawford, EVP and Portfolio Manager at Alger.
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ritholtz.com
28 July
Writer of the personal-finance blog Of Dollars And Data and author of Just Keep Buying and The Wealth Ladder. Chief Operating Officer at Ritholtz Wealth Management.
24 July
Programmer and writer on computer architecture, performance, and software reliability. He has worked on CPU design at Centaur Technology and on software at Google and Microsoft, and writes long-form technical essays at danluu.com.
Exercises in evals and benchmarking: DeepSWE / Senior SWE-Bench, performance math, and cold weather tires Related
Brazilian-American staff software engineer working on platforms, AI and developer productivity. Writes about engineering and his setup at ivansantos.me.
17 July
General partner at Andreessen Horowitz from 2013 to 2018 and CTO of Coinbase from 2018 to 2019; co-founder of Counsyl and Earn.com. Wrote The Network State (2022), free in full at thenetworkstate.com, and founded the Network School.
I don’t usually post DMs, but this is a rare exception as I actually asked him before doing so and he consented. Danial is a local Malaysian. Several months ago he asked “Would be cool if you could repost our current portfolio of projects as well, under KD Labs 👀”. I invited him to the Network School campus, as I do many Malaysian builders. He also said he wanted to build a virtual campus for Malaysians, a similar vision to me regarding a network state. Of course, I support him in that vision! And of course it shows that the concept of the network state, like the concept of cryptocurrency, h… Quoting @masterofnone The Network School (@ns) drama is all over the Internet What's really happening? I'm Malaysian & Irish ~ born and raised in London. Recently moved back to 🇲🇾 for good. My plan? To help build Malaysia's AI Builders Hub (@KrackedDevs) ~ upskilling our people, pulling Malaysian builders together, an… Related
3 July
London-based front-end architect, web developer evangelist and cloud consultant; Microsoft MVP. Writes at praveen.science and answers on Stack Overflow.
30 June
Professor of atmospheric sciences at Texas A&M; writes The Climate Brink with Zeke Hausfather.
24 June
British designer and technologist; co-founder of the design studio BERG, which made Little Printer, and writer of the blog Interconnected.
Everyone should build their own weather app. This is mine, it has approximately two users, and we both check it every single day Related
18 June
Professor of finance at NYU's Stern School of Business, known for his work on valuation. He publishes his data, spreadsheets and classes free at Damodaran Online and writes the Musings on Markets blog.
2 June
Professor of atmospheric sciences at Texas A&M; writes The Climate Brink with Zeke Hausfather.
26 April
Co-founder and CEO of Snap Inc., the company behind Snapchat, which he started in 2011 while studying product design at Stanford.
Their words
Design is really about, you know, empathizing with your customer, empathizing with your audience, your viewer, whoever it is, and then building something that will really resonates with them. And And that means you need to have a an extraordinary amount of range.
Show the whole quote
youtube.com
24 April
Software engineer and writer; former CTO of Wave, now at Anthropic. Blogs at benkuhn.net on attention, engineering management and doing hard things well.
4 April
JavaScript programmer; creator of the jQuery library, author of Secrets of the JavaScript Ninja, and long-time engineer at Khan Academy.
Saw a writhing ribbon snake mating ball today - very active with the warm weather! (Don’t watch if you have a snake phobia… it was a lot in person, 😝 🐍) Related
11 March
American game designer and director, for nineteen years at Blizzard as a World of Warcraft quest designer and then game director of Overwatch; now runs the independent studio Kintsugiyama.
Their words
Now part of the skillset is being able to weather like a fire hose of criticism like the world has never seen.
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youtube.com
19 February
Founded Bridgewater Associates in 1975 and led it until stepping back from control in 2022. Author of Principles, The Changing World Order and How Countries Go Broke; publishes economic analysis at economicprinciples.org.
2025 Naturally, as a systematic global macro investor leaving 2025, I reflected on the mechanics of what happened, particularly in the markets.
Related
Founded Bridgewater Associates in 1975 and led it until stepping back from control in 2022. Author of Principles, The Changing World Order and How Countries Go Broke; publishes economic analysis at economicprinciples.org.
26 January
Freelance research analyst and writer of the blog Aceso Under Glass, known for 'epistemic spot checks' of non-fiction claims.
Things I learned from reddit fashion When it comes to clothes, I live at the “low cost/low time/low quality” end of the pareto frontier. But the bay area had a sudden attack of weather this December, and the cheap sweaters on Amazon get that way by being m…
Related
22 January
Independent game developer, creator of the colony simulation RimWorld and author of Designing Games: A Guide to Engineering Experiences. Previously worked on BioShock Infinite.
A game idea should be at least 90% mechanics and less than 10% story. Any more than 10% story is a red flag. Related
29 December 2025
Pen name of the Canadian-American writer behind mrmoneymustache.com, a blog on frugality, early retirement and index-fund investing that has run since 2011.
This was the first year in a long time that the US stock index (VTI) got trounced by International stocks (VXUS). I was shocked by this difference: VTI: +18.6% VXUS: +33% (!!) This was good for my @Betterment account, which holds about an allocation of non-US stocks and has thus lagged a US-only portfolio for a while. Even after this run, VXUS is much cheaper, trading at a P/E ratio of 17 (and paying a 3.6% dividend) versus our ~27 ratio for the US index which a paltry 1.1 dividend. Will the outperformance continue in the coming years to help these two competitors even back out? Historically… Related
28 November 2025
Astrophysicist and coffee researcher; author of The Physics of Filter Coffee and The Physics of Espresso, and writer of the Coffee ad Astra blog on brewing science and equipment.
28 August 2025
Mathematician and maker of the 3Blue1Brown YouTube channel, which explains mathematics through animation. Creator of the open-source Manim animation library and founder of the Summer of Math Exposition.
Bluesky Guest video 3/5 while I'm on leave is now up! It's by a former SoME winner, covering key ideas in statistical mechanics to create a simple and discrete model mirroring the behavior of a fluid transitioning between a liquid and gaseous state. Enjoy! youtu.be
Related
x.com Guest video 3/5 while I'm on leave is now up! It's by a former SoME winner, covering key ideas in statistical mechanics to create a simple and discrete model mirroring the behavior of a fluid transitioning between a liquid and gaseous state. Enjoy! youtu.be
Related
23 August 2025
Mathematician and maker of the 3Blue1Brown YouTube channel, which explains mathematics through animation. Creator of the open-source Manim animation library and founder of the Summer of Math Exposition.
Bluesky Hey, psst, you can find early views for two upcoming guest videos on Patreon, one about statistical mechanics and another covering a story of modern art and group theory. Notes on early releases are always helpful before finalizing a video. patreon.com
Related
x.com Hey, psst, you can find early views for two upcoming guest videos on Patreon, one about statistical mechanics and another covering a story of modern art and group theory. Notes on early releases are always helpful before finalizing a video. patreon.com
Related
15 August 2025
Founder of Terraform Industries and formerly a physicist at NASA's Jet Propulsion Laboratory; writes about energy, space and manufacturing.
solar data centers
Their words
actually it turns out that you can significantly decrease power consumption with a very small reduction in overall compute. So if you if you've got like three really bad days in a row or something, you can actually just like you can dial back your power usage quite a lot without compromising your inference or or um or training.
Show the whole quote
youtube.com
11 July 2025
Front-end developer and writer; co-founder of CodePen, founder of CSS-Tricks, and co-host of the ShopTalk Show podcast.
14 June 2025
Mathematician at UCLA, working mainly in harmonic analysis and partial differential equations. Writes What's new, a long-running blog on their research, open problems and expository notes.
Their words
But I have faith that we've been doing this for centuries and we've made progress before. There's no reason why we should stop.
Show the whole quote
youtube.com
5 May 2025
Astrophysicist at Barnard College; wrote Black Hole Blues and How the Universe Got Its Spots, and directs sciences at Pioneer Works.
Their words
I’m unhappy with that. I would not be happy with information loss. I love that it’s telling us that there’s this crisis because I do think it’s giving us the clues, and we have to take them seriously.
Show the whole quote
youtube.com
23 March 2025
Founder and chief executive of Superhuman, the email client; previously founder of Rapportive, which he sold to LinkedIn; a professional game designer before that.
Their words
what is it that creates true virality? It's not viral mechanics. It's word of mouth. It is brand that this is how you can kickstart a brand.
Show the whole quote
youtube.com
22 December 2024
Astrophysicist at the University of Rochester; works on the search for life elsewhere and wrote The Little Book of Aliens and Light of the Stars.
Their words
Many of them try to pretend the measurement problem isn't there. Go to enormous lengths like the many-worlds interpretation, literally inventing an infinite number of unobservable parallel universes to avoid the thing that quantum mechanics is telling them, which is that measurements matter.
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youtube.com
8 July 2024
Cryptography engineer; maintains Go's cryptography libraries as a full-time open-source maintainer, funded directly by companies that use them.
open source
Their words
Clients still pay a fixed monthly retainer to ensure the professional maintenance of the whole portfolio, and to get access to the expertise of all of Geomys’ maintainers.
Show the whole quote
words.filippo.io
1 July 2024
Physicist and science communicator. Writes Backreaction and makes videos explaining new physics and astronomy results, frequently to argue that the headline about them overstates the case.
22 April 2024
Theoretical physicist and philosopher, Homewood Professor of Natural Philosophy at Johns Hopkins and fractal faculty at the Santa Fe Institute. Writes the Preposterous Universe blog and hosts the Mindscape podcast.
From one piece
Sean Carroll: General Relativity, Quantum Mechanics, Black Holes & Aliens | Lex Fridman Podcast #428
2 beliefs, in the piece's order there
Their words
If you think about how we teach quantum mechanics to our students, the Copenhagen interpretation, it’s a God-awful mess. No one’s going to accuse that of being very beautiful. I’m a fan of the many-worlds interpretation of quantum mechanics, and that is very beautiful in the sense that fewer ingredients, just one equation, and it could cover everything in the world.
Show the whole quote
youtube.com
Their words
I think that that story about the latter part is completely wrong, almost 180 degrees wrong. I think that Einstein understood quantum mechanics as well as anyone, at least up through the 1930s. I think that his philosophical objections to it are correct. He should actually have been taken much more seriously about that.
Show the whole quote
youtube.com
14 February 2024
Physicist and science communicator. Writes Backreaction and makes videos explaining new physics and astronomy results, frequently to argue that the headline about them overstates the case.
27 November 2023
Theoretical physicist and philosopher, Homewood Professor of Natural Philosophy at Johns Hopkins and fractal faculty at the Santa Fe Institute. Writes the Preposterous Universe blog and hosts the Mindscape podcast.
31 October 2022
Physicist and science communicator. Writes Backreaction and makes videos explaining new physics and astronomy results, frequently to argue that the headline about them overstates the case.
30 September 2022
Physicist and science communicator. Writes Backreaction and makes videos explaining new physics and astronomy results, frequently to argue that the headline about them overstates the case.
19 August 2022
Physicist and science communicator. Writes Backreaction and makes videos explaining new physics and astronomy results, frequently to argue that the headline about them overstates the case.
25 January 2022
Co-founder of Netscape and of the venture firm Andreessen Horowitz. Argues at length for building things, mostly in short form.
Their words
success or failure is not at the unit of an individual investment. Right? Success or failure is at the level of a portfolio.
Show the whole quote
youtube.com
11 December 2021
Software engineer; co-founder and former CTO of Tailscale, previously on the Go team at Google.
19 July 2019
Emeritus Professor of Statistics at the University of Cambridge, former president of the Royal Statistical Society, and author of The Art of Statistics.
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A korrent is a belief a person has stated in their own words: one
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