In this paper from Harvard, researchers look at a large dataset of approximately 300 million work events of 700,000 workers across 700 firms. They find that the adoption of AI agents leads to large and significant increases in lines of code (30%), commits (20%), and PRs (23%). These numbers are consistent with what I hear from talking to people in the industry, as well as in other literature. However, when they look at features deployed to production, they only find small (statistically insignificant) positive effects. How is it the case that so much more code is being written, but the amount of features we see varies so widely in different types of software?

 

Decoherence grows relative to the rate of change of a system, and it increases faster the more decoherent a system is, resulting in runaway exponential growth. It is not a new phenomenon, and humans have always countered it through carefully finding ways to do more with less, unifying disparate patterns and models into a cohesive whole. However, the widespread use of AI is currently producing it at a rate that is unsustainable.

The good news is that this rules out the specter of runaway recursive self-improvement, the intelligence explosion that goes parabolic before anyone can react, as decoherence both prevents AI from improving in a bubble and limits the rate at which it can improve outside of it. The bad news is that we are barreling toward a different kind of disaster: Decoherence Collapse.

 

The scroll marker features used here currently have limited browser support. They’re supported in Chromium-based browsers, but Firefox and Safari don’t support them yet.

The nice thing is that the underlying HTML is still just a normal list of links pointing to sections. Browsers that don’t understand the new CSS still have perfectly usable navigation.

[–] [S] 53 points 9 months ago (8 children)

I think the most interesting, and also concerning, point is the eighth point, that people may become busier than ever.

After guiding way too many hobby projects through Claude Code over the past two months, I’m starting to think that most people won’t become unemployed due to AI—they will become busier than ever. Power tools allow more work to be done in less time, and the economy will demand more productivity to match.

Consider the advent of the steam shovel, which allowed humans to dig holes faster than a team using hand shovels. It made existing projects faster and new projects possible. But think about the human operator of the steam shovel. Suddenly, we had a tireless tool that could work 24 hours a day if fueled up and maintained properly, while the human piloting it would need to eat, sleep, and rest.

In fact, we may end up needing new protections for human knowledge workers using these tireless information engines to implement their ideas, much as unions rose as a response to industrial production lines over 100 years ago. Humans need rest, even when machines don’t.

This does sound very much like what Cory Doctorow refers to as a reverse-centaur, where the developer's responsibility becomes overseeing the AI tool.

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  • [–] [S] 12 points 10 months ago (6 children)

    This article is quite interesting! There are a few standout quotes for me:

    On one hand, we are witnessing the true democratisation of software creation. The barrier to entry has effectively collapsed. For the first time, non-developers aren’t just consumers of software - they are the architects of their own tools.

    The democratisation effect is something I've been thinking about myself, as hiring developers or learning to code doesn't come cheap. However, if it allows non-profits to build ideas that can make our world a better place, then that is a good thing.

    We’re entering a new era of software development where the goal isn't always longevity. For years, the industry has been obsessed with building "platforms" and "ecosystems," but the tide is shifting toward something more ephemeral. We're moving from SaaS to scratchpads.

    A lot of this new software isn't meant to live forever. In fact, it’s the opposite. People are increasingly building tools to solve a single, specific problem exactly once—and then discarding them. It is software as a disposable utility, designed for the immediate "now" rather than the distant "later."

    I've not thought about it in this way but this is a really good point. When you make code cheap, it makes it easier to create bespoke short-lived solutions.

    The real cost of software isn’t the initial write; it’s the maintenance, the edge cases, the mounting UX debt, and the complexities of data ownership. These "fast" solutions are brittle.

    Though, as much as these tools might democratise software development, they still require engineering expertise to be sustainable.

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  • [–] [S] 64 points 10 months ago (1 child)

    I use AI coding tools, and I often find them quite useful, but I completely agree with this statement:

    And if you think of LLMs as an extra teammate, there's no fun in managing them either. Nurturing the personal growth of an LLM is an obvious waste of time.^___^

    At first I found AI coding tools like a junior developer, in that it will keep trying to solve the problem, and never give up or grow frustrated. However, I can't teach an LLM, yes I can give it guard rails and detailed prompts, but it can't learn in the same way a teammate can. It will always require supervision and review of its output. Whereas, I can teach a teammate new or different ways to do things, and over time their skills and knowledge will grow, as will my trust in them.

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  • [–] [S] 24 points 10 months ago (1 child)

    My understanding of how this relates to Jevons paradox, is because it had been believed that advances in tooling would mean that companies could lower their headcount, because developers would become more efficient, however it has the opposite effect:

    Every abstraction layer - from assembly to C to Python to frameworks to low-code - followed the same pattern. Each one was supposed to mean we’d need fewer developers. Each one instead enabled us to build more software.

    The meta-point here is that we keep making the same prediction error. Every time we make something more efficient, we predict it will mean less of that thing. But efficiency improvements don’t reduce demand - they reveal latent demand that was previously uneconomic to address. Coal. Computing. Cloud infrastructure. And now, knowledge work.

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  • [–] [S] 1 point 10 months ago (1 child)

    Kent Beck does mention CodeRabbit, however he also highlights the benefits of pairing with humans, as he later goes on to say:

    It’s not pairing. Pairing is a conversation with someone who pushes back, who has their own ideas, who brings experience I don’t have. CodeRabbit is more like... a very thorough checklist that can read code.

    I’d rather be pairing.

    I miss the back-and-forth with another human who cares about the code. I miss being surprised by someone else’s solution. I miss the social pressure to explain my thinking out loud, which always makes the thinking better.

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  • [–] [S] 1 point 10 months ago (6 children)

    Even when I share these articles in the AI community, they get voted down. 🫤 I know these articles aren't popular, because there is quite a lot of prejudice against AI coding tools. However, I do find them interesting, which is why I share them.

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  • [–] 20 points 11 months ago (1 child)

    Based on my own experience of using Claude for AI coding, and using the Whisper model on my phone for dictation, for the most part AI tools can be very useful. Yet there is nearly always mistakes, even if they are quite minor at times, which is why I am sceptical of AI taking my job.

    Perhaps the biggest reason AI won't take my job is it has no accountability. For example, if an AI coding tool introduces a major bug into the codebase, I doubt you'd be able to make OpenAI or Anthropic accountable. However if you have a human developer supervising it, that person is very much accountable. This is something that Cory Doctorow talks about in his reverse-centaur article.

    "And if the AI misses a tumor, this will be the human radiologist's fault, because they are the 'human in the loop.' It's their signature on the diagnosis."

    This is a reverse centaur, and it's a specific kind of reverse-centaur: it's what Dan Davies calls an "accountability sink." The radiologist's job isn't really to oversee the AI's work, it's to take the blame for the AI's mistakes.

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  • [–] [S] 6 points 11 months ago (2 children)

    This really sums up Beck's argument, that now is the perfect time to invest in junior developers, because AI allows them to learn and skill up faster:

    The juniors working this way compress their ramp dramatically. Tasks that used to take days take hours. Not because the AI does the work, but because the AI collapses the search space. Instead of spending three hours figuring out which API to use, they spend twenty minutes evaluating options the AI surfaced. The time freed this way isn’t invested in another unprofitable feature, though, it’s invested in learning.

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