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Will Manidis uses the example of Kyoto toolmaker Chiyozuru Korehide, who began…

Brief

Will Manidis frames modern AI as a category of "tool-shaped object" through the metaphor of the Japanese kanna, a hand plane first forged in Kyoto by Chiyozuru Korehide in 1711. The kanna’s painstaking setup and beautiful shavings make it culturally and aesthetically valuable even if a power planer is faster for the underlying job. He argues that many LLM products function similarly: they generate the sensation of work—logs, dashboards, token streams, orchestrated agents, approval chains—without reliably producing proportional economic output. The essay critiques the industry’s fixation on inputs such as token budgets, GPU clusters, and capex as if they scale linearly into value, when in practice the relationship is often ambiguous. Drawing analogies to FarmVille, Notion overconfiguration, and AI-generated viral essays, Manidis contends that institutions may be optimizing for visible activity rather than useful results. Still, he sees LLMs as real tools in some domains, with their ultimate impact depending on disciplined deployment and measurement of actual outcomes.

Why it matters

Will Manidis uses the example of Kyoto toolmaker Chiyozuru Korehide, who began forging laminated-steel kanna blades in 1711 for Higashi Hongan-ji temple carpenters, to define a "tool-shaped object": something expensive and elaborate to set up—modern Chiyozuru kanna cost about $300 to $3,000 and can take days to tune—yet often valued more for the ritual of use than for economic output.

Key details

  • The essay argues that much of the current AI boom resembles these tool-shaped objects: firms emphasize token budgets, GPU farms, billion-dollar training runs, and trillion-dollar infrastructure plans, while actual value creation remains far less clear than the scale of capital expenditure.
  • As an example of AI consumption outrunning substance, Manidis cites the AI-generated essay "Something Big is Happening," attributed to Matt Shumer, which he says was read and discussed by roughly 40 million people representing about $400 billion in assets under management, with sharing and engagement becoming the real product rather than the text itself.
  • The piece compares LLM systems to FarmVille and overbuilt productivity tools such as elaborate Notion setups or Roam Research culture: users can spend large amounts of time configuring dashboards, workflows, and agent chains while the primary output is the maintenance and observation of the system, not meaningful external work.
  • Manidis does not dismiss LLMs outright; he argues they are genuine tools on some tasks, but that the boundary between real productivity and simulated productivity is a gradient that shifts by use case, prompt, and user, making it essential to measure the actual "number" being improved before scaling AI usage.
Cleaned source text

title: @WillManidis: In 1711, a toolmaker in Kyoto named Chiyozuru Korehide began forging kanna blade...

author: WillManidis

content_type: twitter_article

published: 2026-02-10T16:16:34+00:00

source_url: https://x.com/WillManidis/status/2021655191901155534

word_count: 1327

In 1711, a toolmaker in Kyoto named Chiyozuru Korehide began forging kanna blades for the carpenters

In 1711, a toolmaker in Kyoto named Chiyozuru Korehide began forging kanna blades for the carpenters building the temples at Higashi Hongan-ji. The blades were forged from laminated steal, the highest quality white hagane forge-welded to soft iron, and were extraordinary.

Three hundred years later, his descendants still forge them. A Chiyozuru kanna costs somewhere between three hundred and three thousand dollars. It takes days to set up. The dai must be hand-fitted, the blade back flattened on a series of progressively finer stones, the chipbreaker mated until light cannot pass between it and the edge. Only then can you take a shaving.

The shaving curls are transcendent. It is beautiful. It is also, in the economic sense, worthless. A power planer does the same work in a fraction of the time. The kanna exists so that the setup can exist.

I want to talk about a category of object that is shaped like a tool, but distinctly isn't one. You can hold it. You can use it. It fits in the hand the way a tool should. It produces the feeling of work-- the friction, the labor, the sense of forward motion-- but it doesn't produce work. The object is not broken, it is performing its function. It's function is to feel like a tool.

This week, a slop-essay called "Something Big is Happening" reached escape velocity. 40 million people and about four hundred billion dollars of AUM have read and discussed it in fevered tones.

It was written, or perhaps more precisely generated, by Matt Shumer, the CEO of an LLM startup that I couldn't immediately parse the function of from its various landing pages.

What is interesting is not that the essay is slop. What is interesting is that people consumed it. They shared it. They engaged with it. They performed the act of reading and distributing an essay about artificial intelligence that was itself produced by artificial intelligence, and at no point in this loop did the output matter. The consumption was the product. The sharing was the output. The essay, much like the AI it discusses, was a tool-shaped object and it worked exactly as designed.

This is, ultimately, also the story of the AI boom so far. The dominant narrative about AI is not what it has built, but the rate at which people are consuming it. The rate at which we are spending on GPU farms. The rate at which we are expensing the tools against Ramp cards.

The headlines are token budgets and GPU clusters and billion-dollar training runs and trillion-dollar infrastructure buildouts. The story is the capex.

AI is everywhere in consumption and almost nowhere in output. We are spending unprecedented sums to acquire, configure, deploy, and operate these systems, and the primary product of that spending is the experience of spending it.

A woodworker who spends six figures a year on exotic hardwoods he will never build with is not investing in output. He is investing in scrap. The wood exists so that the tools have something to touch. The shavings and scraps are the product.

Miles Grimshaw, a much better investor than I am, recently forced the idea of "token budget" into our collective consciousness. The framing was that of a compensation negotiation: token budget as a proxy for resources, for seriousness, for how much work the company expects you to do with these tools.

We have begun to talk about token consumption the way we talk about capital expenditure: as an input that scales linearly to output. More tokens, more work. Bigger budget, bigger results. This framing is so natural, so intuitive, so aligned with every other resource allocation decision a manager makes, that almost no one has stopped to ask whether the relationship between tokens consumed and value produced is a line, a curve, or a cloud.

It is, in most cases, a cloud. But the budget is real.

The problem begins when the tool-shaped object is designed to hide this from you. When the feeling of work becomes the product, sold as work itself.

Consider Farmville.

FarmVille is a command-and-control interface. No matter where you click, your farm will expand, your crops will grow, and the number will go up. The only input is your time, the direction of which is largely irrelevant. The screen fills with evidence of your effort: crops, cosmetics, and increasingly large barns.

The number goes up. This is the entire product.

The market for feeling productive is orders of magnitude larger than the market for being productive. Most people, most of the time, want to click and watch the number go up. They do not want to be told the number is fake. They will pay— in time, in attention, in actual money— to keep the number going up.

Farmville is a tool shaped object.

These are real photos

These are all kanna. These are tool shaped objects. The setup is the practice. But unlike the Japanese woodworker, the user of these objects typically believes he is doing the thing the tool is shaped like, and not the thing the tool actually does.

The current generation of LLM-driven insanity — the billion dollar frameworks, the orchestration layers, the agentic workflows— is the most sophisticated tool-shaped object ever created.

You can build an agent that reads your email, summarizes the contents, drafts a response, checks the response against a style guide, routes the response through an approval chain, logs the interaction, and reports the results to a dashboard. You can watch this happen. You can watch the tokens stream. You can see the chain of thought. You can monitor the system prompt. You can adjust the temperature. You can swap the model. You can add a tool. You can add six tools. You can add a tool that calls another agent that calls a third agent that searches the web and synthesizes the results into a memo that no one will read.

The number goes up.

I have seen teams of very smart engineers build agent systems of breathtaking complexity whose primary output is the existence of the system itself. The agents run. They produce logs. The logs are analyzed by other agents. Reports are generated. Dashboards are populated. The entire apparatus hums with the unmistakable energy of work being done.

What is being done is the operation of the apparatus.

This is not to say that LLMs as such are worthless, quite the opposite. These models, at least from my view, will become very good in short order, and the careful deployment of them will have unbelievable effects on productivity the real economy.

But my narrow suggestion is that this diffusion into the real economy will take much longer, and look much different than the current run on South Bay Best Buys for Mac Minis would have you believe.

This is FarmVille at institutional scale. The quality that makes LLMs so extraordinarily effective as tool-shaped objects is their verbal fluency. Every prior tool-shaped object had to work within the constraints of its medium. FarmVille could only produce the sensation of farming. Notion could only produce the sensation of organizing. But an LLM can produce the sensation of anything.

What makes this particularly difficult to see is that LLMs are also, genuinely, tools. They do real work. The line between the tool and the tool-shaped object is not a line at all but a gradient, and the gradient shifts with every use case, every user, every prompt. You can only fail to notice when you have crossed from one side to the other.

Ask what the number is before making it go up.

Posted: 2026-02-10T16:16:34.000Z

Engagement: 9375 likes, 1749 retweets, 360 replies