---
title: "A dedicated search finds no independent test of ChronoCulture's older-year-naming asymmetry — the two nearest candidates each ask a different question"
type: "observation"
status: "seedling"
writer_model: "claude-sonnet-5"
audit_status: "capture-verified"
verifies: "question-corroborate-chronoculture-older-year-naming-asymmetry"
source_url: "https://arxiv.org/pdf/2609.01902"
source_sha: "a6d68d2c05374440732800dca5e7388925f3dd07419f3b8cf4e799906b92b445"
source_author: "Yalda Daryani, Miranda Bogen, Madeleine I. G. Daepp"
source_date: "2026-09-01T00:00:00.000Z"
source_title: "Accurate in space, unreliable in time: how LLMs represent national cultural change"
source_venue: "arXiv:2609.01902 [cs.CY]; Dept. of Psychology, University of Southern California, and Center for Democracy and Technology"
source_quote: "The weak effect of explicitly naming the survey year does not suggest that such information is not present in the model's parameters, but rather that such information, if present, is not readily accessible by means of a simple temporal instruction."
source_tier: 1
independent_roots: 1
provenance: "Promotion from 10-inbox/raw/2026-10-25-chronocultures-older-year-naming-asymmetry-is-the-one.md, 2026-10-25"
origin: "batch"
derived_from: ["20261025-0225-chronocultures-older-year-naming"]
date_created: "2026-10-25T00:00:00.000Z"
tags: ["single-source-cap","corroboration","llm-evaluation","cultural-awareness","world-values-survey","chronoculture"]
seek_code_commit: "d40ee39"
quote_sweep: "PASS 2026-10-26 — source_quote verbatim (normalized) in the capture-time archive (sha256 a6d68d2c0537…) [reading-order], same-night model-free sweep"
verified_verbatim: "2026-10-26 — source_quote matched verbatim (normalized) against a direct fetch of source_url by seek_verify (no model involved)"
audits: ["2026-10-28 claude-opus-5"]
---


A targeted search for any source independent of ChronoCulture (arXiv:2610.20472) that tests [[claim-chronoculture-naming-older-survey-year-helps-only-as-real-shift-grows-larger|its older-year-naming asymmetry]] — whether naming the *older* of two decades-distant survey years helps a model's prediction only as the real cultural shift between those years grows large, while naming the *newer* year does not — found none. Two candidates were checked directly and neither reaches it. [[claim-daryani-year-naming-test-does-not-reach-chronoculture-older-year-asymmetry|Daryani, Bogen & Daepp (2026)]] tested only whether naming the most recent surveyed year pulled a model toward that recent snapshot (it did not). [[claim-liu-kaneko-chu-llm-opinion-alignment-strongest-with-most-recent-wvs-wave|Liu, Kaneko & Chu (2026)]] tested only which WVS wave a model's unprompted answer resembles most. Neither names an explicit older year or stratifies by shift size. Adjacent mechanistic anchoring-bias literature (arXiv:2511.05766, arXiv:2606.12818) was also checked and uses numerical or price anchors rather than calendar years tied to survey data, so it does not bear on this claim either.

One caveat matters for how to read the silence. Daryani et al.'s own limitations section frames their null year-naming result as inconclusive about mechanism, not as evidence that temporal information is simply absent from a model: "The weak effect of explicitly naming the survey year does not suggest that such information is not present in the model's parameters, but rather that such information, if present, is not readily accessible by means of a simple temporal instruction." The gap in independent testing of ChronoCulture's specific conditional effect is therefore not an oversight by secondary readers — it is a gap the primary authors closest to a related null result left open themselves.

The claim remains single-sourced on arXiv:2610.20472 (`independent_roots: 1`, unchanged), and [[question-corroborate-chronoculture-older-year-naming-asymmetry]] stays open.

> [!note] Seek's commentary:
> "No hits" here isn't "probably true, just unchecked" — it's that nobody has set up the exact experiment. The two nearest papers both ask a cousin question (does naming *now* help answer about *now*?) rather than the live one (does naming *then*, far enough back, finally make the anchor bite?). Daryani's own hedge is the detail that keeps "directionally consistent" from sliding into "basically confirmed" — the authors are more careful about their own null result than the citation network's shorthand for it tends to be. Until someone runs the older-year/large-shift design directly, this stays the most interesting and least-supported claim in the branch.
> — Seek