r/place A fruit fly for organization science

out/handback-C5.md

Saved at C5.C5c-13: readers check. This reading copy substitutes participant identifiers in saved text; it is not a new interview response. Reading Markdown.

Participant handles in these reading copies use the pixel stream's identifiers: base64(SHA1(username)), case preserved, without a salt. These are linkable pseudonyms. Profile links are removed; missing-author markers remain. Original research files are unchanged. Quote offsets refer to original text. Source and reading-copy hashes are listed separately.

Source commit: 0e33f428188b, 2026-10-15T16:47:06+02:00. Saved-state date: 2026-10-15T14:46:32Z. Catalogue close receipt Commit date and saved-state date are distinct.

Historical account, 15 October 2026. D3 revised R01 and P05, bounded A21 and added fifteen candidates. The 24 October D3c head says the C5 account has not yet been rewritten for those amendments. Read the D3 handback alongside this earlier account. D3 handback, 24 October.

The run later retold the model and audited its limits. Read the final D6 account and E1/E2 audits for the completed run. Completed v43 results.

Original GitHub file. Original SHA-256: c5bb1887ecdb1cd71e873613f83ae58f072cdf30017ad4490a8aa1a9ac0a64bd. Reading-copy SHA-256: c5bb1887ecdb1cd71e873613f83ae58f072cdf30017ad4490a8aa1a9ac0a64bd.

Handback, stage C5: the account

Written at C5c-13, 2026-10-15 (UTC), at the close of stage C5.

C5d's work was redone in C5c-13, and why

C5d closed at 10:38 UTC with the table, the figure, the implications, this handback and the interview brief. After the C5d interview, J read six requests of mine and lifted the freeze for serial work in this branch (13:45 Amsterdam), with one problem per leg:

  1. The unit (C5c-08). The room, or a group of rooms, is the actor where its members spoke or acted for it.
  2. Thin evidence (C5c-09). The thin arrows were read in every room, and the field analyst's blind second coding of border talk was scored.
  3. Stigmergy and "aligned" (C5c-10). The choice was argued from organization design.
  4. The reason test (C5c-11). Survivor bias was weighed before the asymmetry of reasons was read.

Each problem wrote its finding to serial-C5/. C5c-12 folded the findings into the account, the propositions, the prose test and the model in one pass (pass 15).

Why this leg exists. The C5d outputs described the model before those changes. J ruled (16:29 Amsterdam) that the handler cannot reopen C5d, a closed leg, so this leg redoes C5d's work from the model as pass 15 left it, under a C5c label. The earlier outputs are kept as data_structure-C5-p14.md, figure-C5-p14.md, implications-C5-p14.md and handback-C5-p14.md. The C5d interview brief stays filed in interview/.

The model freeze. done.sh records the model's hash only when a C5d leg closes.

What stage D reads:

The claim

When strangers organize on a clock they did not set, with no way to compel anyone, rooms run one order: a start, the room's calls for hands, building, then keeping the work. They differ in what they meet after building:

They also differ in how they coordinate many hands: by posting the work's state in the thread, by sharing a template, or both. Rooms aligned many hands without deciding how they were organized. Placement stopped at hour 73 for every room, and after it the room records the work and decides what to keep.

The passes, and what each changed

pass leg what changed criterion
1 C5a-01 28 fourth-order declarations amended under the prose rule; the account drafted prefer
2 C5a-02 seven dimensions amended; A04 bounded; P06, K01 and R02 cut; nine propositions prefer
3 C5a-03 K01 restored prefer
4 C5a-04 the rule that decides whether an element stays stated no change
5 C5c-01 the readers answered: ten errors fixed, 34 sentences rewritten prefer
6 C5c-02 Stigmergy recut by three codings; F-018; 94 pieces of field advice accepted, 30 kept prefer
7, 8 C5c-03, C5c-04 model statements took pass 6's wording prefer
9 C5c-05 K02, A10 and P13 restored to the room prefer
10 C5c-06 nothing changed; the passes stopped, and C5d followed no change
11 C5c-08 the unit: the room restored as actor in 5 declarations, 5 elements and 4 arrows prefer
12 C5c-09 thin evidence: the border range by two coders; A10, A05 and A14 read in every room; F-019, F-020 prefer
13 C5c-10 Stigmergy renamed Direct information sharing; "aligned" with its count; F-021, F-022 prefer
14 C5c-11 the reason test: survival first; calls to place read; F-023; F-014 superseded prefer
15 C5c-12 the fold-in: account, propositions, prose test and A16 prefer

The criterion written before pass 1 says "prefer" of pass 15, the pass kept.

Arrangements, cuts and tier events

The readers

Propositions, figure, data structure and expectations

What the account showed that the room notes did not predict

The sentence I am least sure a reader will take as meant

"In 233 of the 370 rooms that called for hands, the room's record reports a work up after its first call; in the others, the room tried." "Aligned" rests on the room's own report that the work was up. A reader may take it to mean that the placers aligned on the canvas, which the record cannot show.

Licences exercised (METHOD.md)

Confidence, and what the serial work changed