Pu is plain wood before anyone has decided what it should become. The tradition’s strangest counsel follows: as things get refined, something is lost. On what all the carving costs.
Pu is a workshop word: timber in its natural state. The tradition turns it into a compass point and then aims the compass backward, at the block.
The point is not that the block is crude. It is that the block is complete in a way nothing carved from it will be again. Every cut is a commitment — wood that becomes a bowl cannot become anything else — and the finer the carving, the fewer the remaining possibilities.
Which is a strange thing to say about refinement, and it is meant to be. The claim is that elaboration has a cost that nobody bills for.
The relevant research converges on something adjacent, and I want to be careful about how close.
Working memory is small, and the load literature establishes that every additional rule, cue and consideration draws on a limited budget.2 Cognitive load theory is a well-established framework in instructional design, though it is a model with contested details rather than a settled law.
The motor-learning wing is more specific: attention directed at the mechanics of your own movement tends to degrade skilled execution relative to attention directed outward at the effect.3 That finding replicates well, and it is the closest the research comes to the block.
And the choice literature — the famous jam study and its successors — is the one I would flag hardest. The idea that more options reduce satisfaction and commitment is genuinely popular and the replication record is mixed; meta-analytic work has found the overall effect close to zero, with the interesting question being when it appears rather than whether.4 I am keeping it in because it names something I recognize, not because it is established.
What survives all three caveats is modest: elaboration is not free, and almost nobody accounts for it.
The incentive is worth stating without cynicism, because it explains the whole shelf.
You can sell someone a plain plan one time. You survive by selling elaborations forever — the new protocol, the extra metric, the supplement, the refinement of the refinement. A market whose product is additional cuts cannot recommend the uncarved block and remain a market.
None of which makes the individual products bad. It just means the aggregate advice you receive will always trend toward more, regardless of whether more is what you need, because nobody is paid to say stop.
The failure mode is obvious once named: “keep it simple” is what people say when they do not want to learn the complicated thing.
Real expertise usually involves a great deal of accumulated distinction-making. The butcher in the last essay can see things a novice cannot; that is elaboration, and it took nineteen years. The uncarved block is not an argument for staying a novice.
The distinction I would draw is between elaboration that comes from experience and elaboration that comes from anxiety. The first adds distinctions you can actually use. The second adds rules you are following because adding them felt like doing something.
The audit below is really a test for which kind you have.
Note — two kinds of elaboration
The first adds distinctions you can act on; the second adds rules you adopted because adopting them felt productive. “Keep it simple” applied to the first is just a refusal to learn the difficult thing.
Run once as a clear-out, then kept as a habit, because the shelf restocks nightly.
This list mixes primary texts, translations, scholarship and modern trade books, and the entries vary in how precisely they can be located. Quotations from the discourses follow Bhikkhu Sujato’s translations, freely available at SuttaCentral, cited by the standard sutta reference. Where a phrase is traditional and circulates in several renderings I say so rather than inventing a citation, and anything marked as a paraphrase is my own wording.
Every refinement is a commitment, and refinements are proposed on their benefits while their costs arrive later and get charged to something else.
The test is not simple versus complex. It is whether your elaboration came from experience or from anxiety — and one of those you can audit away in an afternoon.