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Bottlenecks

A system moves only as fast as its narrowest point; speed up anything else and nothing changes.

Our reading of the idea · 13 claims from 11 people, in their own words

Who thinks with this

Jacob TrefethenAlexandr WangCasey HandmerDavid Heinemeier HanssonDylan PatelJensen HuangLip-Bu TanMax HodakMichael NielsenNicole ForsgrenRuxandra Teslo

Most organisations are bottlenecked on ideas, vision and taste rather than on implementation, so making code cheap does not make them productive.

  1. David Heinemeier Hansson Creator of Ruby on Rails, CTO of 37signals The other thing I'd say is that most organizations don't know what they want. They don't know how to make it better. They're not bottlenecked on implementation. They're bottlenecked on ideas. They're bottlenecked on vision. They're bottlenecked on taste. And if you don't have those element in excess of your implementational capacity, it doesn't help. So you can make a lot of shitty ideas come true, then what? DHH: Future of Programming, AI, Agentic Engineering, Vibe Coding & Linux | Lex Fridman Podcast #501youtube.com · 26 Aug 2026 · 0:20:13 into the videoAll korrents from this video
    The other thing I'd say is that most organizations don't know what they want. They don't know how to make it better. They're not bottlenecked on implementation. They're bottlenecked on ideas. They're bottlenecked on vision. They're bottlenecked on taste. And if you don't have those element in excess of your implementational capacity, it doesn't help. So you can make a lot of shitty ideas come true, then what?

The bottleneck on America's AI buildout is transmitting power, not generating it: in parts of the US, moving electricity costs more than making it.

  1. Dylan Patel Founder and chief executive of SemiAnalysis Interesting thing is certain regions of the US transmitting power cost more than actually generating it because the grid is so slow to build. And the demand for power, and the ability to build power, and re-ramping on a natural gas plant or even a coal plant is easy enough to do, but transmitting the power's really hard. DeepSeek, China, OpenAI, NVIDIA, xAI, TSMC, Stargate, and AI Megaclusters | Lex Fridman Podcast #459youtube.com · 3 Feb 2025 · 3:45:47 into the videoAll korrents from this video
    Interesting thing is certain regions of the US transmitting power cost more than actually generating it because the grid is so slow to build. And the demand for power, and the ability to build power, and re-ramping on a natural gas plant or even a coal plant is easy enough to do, but transmitting the power's really hard.

Every industrial revolution is the same move — routing around a bottleneck — and the bottleneck before ours was the limit of what a human or a horse could digest.

  1. Casey Handmer Physicist, formerly at NASA's Jet Propulsion Laboratory And the bottleneck prior to what we call the industrial revolution was uh metabolism, right? It's just like how much like oats can a human or a horse physically digest and then convert into useful mechanical output for you know their their um their peasant overlord or whatever. China is killing the US on energy. Does that mean they’ll win AGI? — Casey Handmeryoutube.com · 15 Aug 2025 · 0:51:51 into the videoAll korrents from this video
    And the bottleneck prior to what we call the industrial revolution was uh metabolism, right? It's just like how much like oats can a human or a horse physically digest and then convert into useful mechanical output for you know their their um their peasant overlord or whatever.

AI has moved the programmer's bottleneck from writing code to having good design ideas, and there is no verification loop for a design idea.

  1. Michael Nielsen Physicist, writer and researcher So certainly one thing that a lot of them seem to be bottlenecked on is now having interesting ideas and in particular having interesting design ideas. Michael Nielsen – Why aliens will have a different tech stack than usyoutube.com · 7 Apr 2026 · 0:48:51 into the videoAll korrents from this video
    So certainly one thing that a lot of them seem to be bottlenecked on is now having interesting ideas and in particular having interesting design ideas.

    Watch from 0:48:51 plays here

    ↗Michael Nielsen – Why aliens will have a different tech stack than usyoutube.com

    7 Apr 2026 · video · 2h 03m · spoken · machine transcript

AI will not on its own compress decades of medical progress into a few years, because the binding constraint is human data, clinical trials and regulation rather than intelligence.

  1. Ruxandra Teslo Geneticist by training and writer on science I told him what I believe: that in the age of AI, medicine will be bottlenecked more than ever by regulation and the grind of clinical trials, and that billions poured into faster pre-clinical research won’t touch that problem, unsexy as it is. Intelligence is not the main bottleneckwritingruxandrabio.com · 21 Jul 2026All korrents from this piece
    I told him what I believe: that in the age of AI, medicine will be bottlenecked more than ever by regulation and the grind of clinical trials, and that billions poured into faster pre-clinical research won’t touch that problem, unsexy as it is.
  2. Jacob Trefethen Head of global health R&D at Open Philanthropy Those are why I do not believe that AI could end disease within 10 years on its own, nor that 50-100 years of medical progress could occur 5-10 years after powerful AI due to AI progress alone AI will not suddenly lead to an Alzheimer's cureblog.jacobtrefethen.com · 2 Aug 2025All korrents from this piece
    Those are why I do not believe that AI could end disease within 10 years on its own, nor that 50-100 years of medical progress could occur 5-10 years after powerful AI due to AI progress alone

Some diseases are technologically solved and still spread, because the remaining bottleneck is trust rather than science.

  1. Jacob Trefethen Head of global health R&D at Open Philanthropy Measles is technologically “solved”, but not everyone trusts the solutions or their messengers. AI will not suddenly lead to an Alzheimer's cureblog.jacobtrefethen.com · 2 Aug 2025All korrents from this piece
    Measles is technologically “solved”, but not everyone trusts the solutions or their messengers.

Any one person or small group placed at the top of the hiring funnel will bottleneck the whole organisation, so first-round review should be distributed across the company as a vote.

  1. Max Hodak Co-founder and chief executive of Science And so we can distribute the voting across a lot of the company for this initial review, which is essential because if you're doing anything cool, by the time you get a couple years into it, that top of funnel is overwhelming. And if you place any in any small group of employees or any one person in the way as a bottle bottleneck on this, they will absolutely bottleneck the whole rest of the organization. Max Hodak: Average Is Not Good Enoughyoutube.com · 7 Aug 2026 · 11:47 into the videoAll korrents from this video
    And so we can distribute the voting across a lot of the company for this initial review, which is essential because if you're doing anything cool, by the time you get a couple years into it, that top of funnel is overwhelming. And if you place any in any small group of employees or any one person in the way as a bottle bottleneck on this, they will absolutely bottleneck the whole rest of the organization.

    Watch from 11:47 plays here

    ↗Max Hodak: Average Is Not Good Enoughyoutube.com

    7 Aug 2026 · video · 57m · spoken · machine transcript

The way to invest in semiconductors is to find where the bottleneck is, and right now the bottleneck is power and thermal.

  1. Lip-Bu Tan Chief executive of Intel since 2025 So I think power, thermal, those become the bottleneck. So I think I always look at from what is the problem we try to solve? Is it real? Is customer crying for it? Re-engineering the Semiconductor Supply Chain with Intel CEO Lip Bu Tanyoutube.com · 18 Jun 2026 · 24:41 into the videoAll korrents from this video
    So I think power, thermal, those become the bottleneck. So I think I always look at from what is the problem we try to solve? Is it real? Is customer crying for it?

    Watch from 24:41 plays here

    ↗Re-engineering the Semiconductor Supply Chain with Intel CEO Lip Bu Tanyoutube.com

    18 Jun 2026 · video · 45m · spoken · machine transcript

The bottleneck in AI is no longer the progress of the models but their diffusion — if the models froze today, the economy would still take decades to absorb what already exists.

  1. Alexandr Wang Founder of Scale AI and, since 2025, Chief AI Officer… I think we're at this like in amazing moment in the world where the bottleneck is not the progress of the AI models, the bottleneck is diffusing that through the rest of the world and and helping the world adapt to this amazing technology that already exists. Like I think if the models didn't improve at all from today, there would still be like decades and decades of like total upheaval and change in the economy and how the world operates and and everything around us Alexandr Wang: “This is a Once-in-a-Civilization Opportunity”youtube.com · 29 Jul 2026 · 9:37 into the videoAll korrents from this video
    I think we're at this like in amazing moment in the world where the bottleneck is not the progress of the AI models, the bottleneck is diffusing that through the rest of the world and and helping the world adapt to this amazing technology that already exists. Like I think if the models didn't improve at all from today, there would still be like decades and decades of like total upheaval and change in the economy and how the world operates and and everything around us

    Watch from 9:37 plays here

    ↗Alexandr Wang: “This is a Once-in-a-Civilization Opportunity”youtube.com

    29 Jul 2026 · video · 32m · spoken · machine transcript

AI did not create the bottlenecks in software delivery; it threw gas on processes everybody already knew were weak.

  1. Nicole Forsgren Researcher of software delivery performance There were a handful of people probably managing a security review process or a launch process or a deployment process or, you know, sometimes reviews were a little slow and they got backed up. Well, now we just threw gas on the fire and so all of that is a problem. Nicole Forsgren: Leading high-performing engineering teams in the age of AI - The Pragmatic Summityoutube.com · 22 Mar 2026 · 2:18 into the videoAll korrents from this video
    There were a handful of people probably managing a security review process or a launch process or a deployment process or, you know, sometimes reviews were a little slow and they got backed up. Well, now we just threw gas on the fire and so all of that is a problem.

Not every bottleneck on medical progress is one AI can remove, and which ones will remain can be guessed at now.

  1. Jacob Trefethen Head of global health R&D at Open Philanthropy But I don’t think all bottlenecks on medical progress are equally AI-able in the next decade, and I don’t think all will become irrelevant. What does AI progress mean for medical progress?blog.jacobtrefethen.com · 2 Aug 2025All korrents from this piece
    But I don’t think all bottlenecks on medical progress are equally AI-able in the next decade, and I don’t think all will become irrelevant.

No bottleneck in the AI supply chain lasts longer than two or three years.

  1. Jensen Huang Co-founder and CEO of NVIDIA since 1993 And so none of that my point is that none of the bottlenecks last longer than a couple 2 three years. None of them. Jensen Huang – Will Nvidia’s moat persist?youtube.com · 15 Apr 2026 · 0:15:00 into the videoAll korrents from this video
    And so none of that my point is that none of the bottlenecks last longer than a couple 2 three years. None of them.

    Watch from 0:15:00 plays here

    ↗Jensen Huang – Will Nvidia’s moat persist?youtube.com

    15 Apr 2026 · video · 1h 43m · spoken · machine transcript

For the whole of human history the bottleneck on progress has been getting a group of smart people together around a shared goal.

  1. Alexandr Wang Founder of Scale AI and, since 2025, Chief AI Officer… I mean, I think for the history of humanity, um you know, groups of smart people getting together towards a shared goal was was the bottleneck of progress. You know, US The United States of America in some sense was an example of this. Like the United States of America was formed from a smart group of very smart people getting together and having a vision for the future that they wanted to enact. Alexandr Wang: “This is a Once-in-a-Civilization Opportunity”youtube.com · 29 Jul 2026 · 21:45 into the videoAll korrents from this video
    I mean, I think for the history of humanity, um you know, groups of smart people getting together towards a shared goal was was the bottleneck of progress. You know, US The United States of America in some sense was an example of this. Like the United States of America was formed from a smart group of very smart people getting together and having a vision for the future that they wanted to enact.

    Watch from 21:45 plays here

    ↗Alexandr Wang: “This is a Once-in-a-Civilization Opportunity”youtube.com

    29 Jul 2026 · video · 32m · spoken · machine transcript

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