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Dutch bootstrapper who builds and runs their internet startups alone — Nomads.com, Remote OK, Hoodmaps, Photo AI and Interior AI — and has written about it at levels.io since 2013. Posts as @levelsio.

• Our readingkorrents.com

  Changing your mind in light of new facts should be celebrated rather than held against you.

  Their words

  The smartest people I know have strong opinions weakly held and change them when new information arises The dumbest people I know keep their opinions the same just so they can remain consistent Time changes too fast try remain consistent, better to sail the waves to wherever they are taking you!

  levels.io

Writes The Pragmatic Engineer, the software-engineering newsletter, and wrote The Software Engineer's Guidebook. Formerly an engineering manager at Uber, and at Microsoft/Skype and Skyscanner before that.

• Our readingkorrents.com

  Changing your mind in light of new facts should be celebrated rather than held against you.

  Their words

  IDK why anyone has a problem with having strong opinions, weakly held.

  @GergelyOrosz on Xx.com

Criminal defence lawyer in New York; writes Simple Justice, mostly about how criminal law works in practice rather than in theory.

• Our readingkorrents.com

  The right to a fair trial belongs to the defendant alone; there is no public right to be weighed against it.

  Their words

  There is a Fifth Amendment right to a fair trial, but that right belongs to the defendant, not the public.

  Retrial Isn’t Double Jeopardy (But It Should Be)blog.simplejustice.us

Creator of Ruby on Rails, CTO of 37signals, and creator of Omarchy.

• Our readingkorrents.com

  Changing your mind in light of new facts should be celebrated rather than held against you.

  Their words

  I'd rather celebrate people updating their priors than dunking on them for being late. Make it cool to change your mind when you realize the facts have changed!

  @dhh on Xx.com

Neurologist at Oxford; studies apathy, motivation and attention after brain injury, and edits the journal Brain.

• Our readingkorrents.com

  Alzheimer's disease and dementia are not the same thing: a fifth to a third of people whose brains carry the pathology never became demented.

  Their words

  Alzheimer's disease does not necessarily equal dementia. people can have Alzheimer's disease and not get dementia. So, we found this out from post-mortem studies. People have been followed as they age. Uh they've donated their brains and it turns out that perhaps 20 to 30% of these individuals who never had dementia have Alzheimer pathology.

  youtube.com

Professor at Stanford working on robot learning and meta-learning; co-founded Physical Intelligence.

• Our readingkorrents.com

  It is the diversity of a robot data set, not its size, that produces generalization: dropping the most diverse slice hurts far more than dropping a random fifth.

  Their words

  we find that the performance on held out tasks decreases dramatically. Whereas if we um just take out a random 20% of the data that's less diverse than the most diverse subset, the performance um only decreases a little bit. And so this suggests that actually having really diverse data plays an important role in enabling it to generalize to new tasks.

  youtube.com

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.

• Our readingkorrents.com

  A correction never travels as far as the scare it corrects: the press said a fifth of the project's skills were malicious, and the measured figure was 0.3 percent.

  Their words

  We did the the numbers and the numbers are more like 0.3%. We scanned all 67,000. We shipped the we shipped the paper. But you know a correction never travels as far as a scare.

  Peter Steinberger: "Fun Is Velocity"youtube.com

Statistician at Carnegie Mellon; writes on complex systems, machine learning and inference, and has kept a books-read notebook since 2000 that is now thousands of entries long.

• Likedrcmnd.app

  Resenting the Hero

  Their words

  Comparing this to The Fifth Season, it is striking how different two fantasy novels about worlds over-supplied with natural disasters, and the people with the psychic gifts to stop those disasters with their minds, can be in tone and execution. This is immensely fluffier, but it has no pretensions to be anything except candy, and succeeds as such.

  bactra.org

Economist at Oxford's Global Priorities Institute; works on what advanced AI would do to growth, saving and the long-run economy.

• Our readingkorrents.com

  The worry that AI's returns are locked away in private companies is overstated: well under a fifth of American market capitalisation is private.

  America

  Their words

  it's already not that hard to index. So it's not There's been a bit of an increase in the privatization of returns but it's still like you know well under 20% of the total market cap of um non-non-tiny companies in in the US is is a private.

  youtube.com

Author of The Lean Startup and Incorruptible, and founder of the Long-Term Stock Exchange, who advises companies on corporate governance and mission protection.

• Our readingkorrents.com

  Only a fifth of venture-backed founders are still CEO three years after going public, and the standard documents their lawyers gave them are why.

  startups

  Their words

  According to Harvard Law School, among venturebacked companies that have the standard best practices set up that you got from your lawyer, okay, only 20% of founders are still the CEO 3 years after going public.

  youtube.com

Professor of Cognitive and Computational Neuroscience at the University of Sussex, co-director of the Sussex Centre for Consciousness Science, and author of Being You: A New Science of Consciousness.

• Our readingkorrents.com

  For IIT to fit with current successful theories in fundamental physics, a reformulation in terms of continuous fields would be needed.

  Their words

  Fifth, for IIT to fit with current successful theories in fundamental physics, a reformulation in terms of continuous fields would be needed.

  arxiv.org

Founder and chief analyst of SemiAnalysis; reports on semiconductor supply chains, AI datacentre economics and what the chip export controls actually do.

• Our readingkorrents.com

  About a fifth of the US grid could be freed for data centres just by covering the yearly peak with batteries or peaker plants.

  data centers

  Their words

  Then all of a sudden, you've unlocked 20% of the US grid for data centers because most of the times that capacity is sitting idle and it's really only there for that peak, right? Which is a day or two, right?

  youtube.com

Writer living in Brooklyn and former Man Repeller features director; writes the weekly newsletter Maybe Baby on culture and consumption.

• Lovedrcmnd.app

  The Broken Earth Trilogy

  Their words

  The Broken Earth Trilogy by NK Jemison (The Fifth Season, The Obelisk Gate, The Stone Sky): Triple-Hugo winner. Stunning world-building. Really fun to escape into a series—haven't done that in years.

  haleynahman.substack.com

Vice chairman of Ogilvy & Mather Group, the advertising agency; author of Alchemy (2019) and the Wiki Man columnist at The Spectator.

• Our readingkorrents.com

  Companies would often be better off moving a tenth to a fifth of their marketing budget into paying call centre staff properly.

  Their words

  probably 50% of the time, I would advise to a client, take 10 to 20% of your marketing budget and spend it on upgrading the call center. Pay the people too much. Get the best practitioners.

  youtube.com

Growth advisor and operator who has led growth at Miro, Amplitude, Dropbox and SurveyMonkey.

• Our readingkorrents.com

  A growth team should spend a fifth to a quarter of its year, measured annually rather than by sprint, introducing a new growth loop.

  Their words

  I try to focus 20% 20 to 25% of growth team's time annually, not every given sprint, not every given quarter, but annually, to introduce a new growth loop.

  youtube.com

Engineer writing about the physical economy — oil and gas, manufacturing, batteries, drones and what it costs to build things.

• Our readingkorrents.com

  A modern shipyard can match a whole wartime industrial mobilisation with a fraction of the workers.

  Their words

  South Korea's yearly production often matches the total tonnage the US produced in WWII - with one-fifth of the workers!

  Revitalizing US Navy Shipbuildingaustinvernon.site

Economist; former chief economist of the International Monetary Fund.

• Our reading nowkorrents.com

  When safe interest rates are expected to remain below growth rates for a long time, rolling over public debt without later tax increases is feasible and public debt may carry no fiscal cost.

  public debtinterest rates

  Their words, before

  If the future is like the past, this implies that debt rollovers—that is, the issuance of debt without a subsequent increase in taxes—may well be feasible. Put bluntly, public debt may have no fiscal cost.

  Their words now

  Across advanced economies, the celebrated ( r - g ), i.e., the difference between the interest rate and the growth rate, appears to have durably changed sign or, at a minimum, to have gone from a substantially negative number to a number closer to zero.

Founder of Terraform Industries and formerly a physicist at NASA's Jet Propulsion Laboratory; writes about energy, space and manufacturing.

• Our readingkorrents.com

  The end state of the grid is not a fifth solar backed by spinning generation, but twice the demand in solar with days of storage behind it.

  solarenergy

  Their words

  The logical end state of this displacement is not some hybrid grid with around 20% solar backed up by spinning generation, but a much more dynamic, versatile grid with around 200% solar generation and hours to days or weeks of battery storage, fully decoupling time of generation and consumption.

  Radical Energy Abundancecaseyhandmer.wordpress.com