diff --git a/inbox/archive/.extraction-debug/2026-03-11-sourati-ai-homogenizing-expression-thought.json b/inbox/archive/.extraction-debug/2026-03-11-sourati-ai-homogenizing-expression-thought.json
new file mode 100644
index 00000000..66b31b81
--- /dev/null
+++ b/inbox/archive/.extraction-debug/2026-03-11-sourati-ai-homogenizing-expression-thought.json
@@ -0,0 +1,24 @@
+{
+  "rejected_claims": [
+    {
+      "filename": "llm-homogenization-reduces-collective-intelligence-through-cognitive-diversity-erosion.md",
+      "issues": [
+        "missing_attribution_extractor"
+      ]
+    }
+  ],
+  "validation_stats": {
+    "total": 1,
+    "kept": 0,
+    "fixed": 1,
+    "rejected": 1,
+    "fixes_applied": [
+      "llm-homogenization-reduces-collective-intelligence-through-cognitive-diversity-erosion.md:set_created:2026-03-18"
+    ],
+    "rejections": [
+      "llm-homogenization-reduces-collective-intelligence-through-cognitive-diversity-erosion.md:missing_attribution_extractor"
+    ]
+  },
+  "model": "anthropic/claude-sonnet-4.5",
+  "date": "2026-03-18"
+}
\ No newline at end of file
diff --git a/inbox/archive/2026-03-11-sourati-ai-homogenizing-expression-thought.md b/inbox/archive/2026-03-11-sourati-ai-homogenizing-expression-thought.md
index cdbd8f51..5b612e13 100644
--- a/inbox/archive/2026-03-11-sourati-ai-homogenizing-expression-thought.md
+++ b/inbox/archive/2026-03-11-sourati-ai-homogenizing-expression-thought.md
@@ -7,11 +7,15 @@ date: 2026-03-11
 domain: ai-alignment
 secondary_domains: [collective-intelligence, cultural-dynamics]
 format: paper
-status: unprocessed
+status: null-result
 priority: high
 triage_tag: claim
 tags: [ai-homogenization, cognitive-diversity, collective-intelligence, llm-effects, expression, thought]
 flagged_for_clay: ["AI homogenization of expression connects to cultural dynamics — homogenized expression may reduce narrative diversity"]
+processed_by: theseus
+processed_date: 2026-03-18
+extraction_model: "anthropic/claude-sonnet-4.5"
+extraction_notes: "LLM returned 1 claims, 1 rejected by validator"
 ---
 
 ## Content
@@ -47,3 +51,11 @@ Published in Trends in Cognitive Sciences, March 2026. Opinion paper by USC comp
 ## Curator Notes
 PRIMARY CONNECTION: AI is collapsing the knowledge-producing communities it depends on creating a self-undermining loop that collective intelligence can break
 WHY ARCHIVED: Provides a SECOND mechanism for the self-undermining loop — not just economic displacement but cognitive homogenization. Published in a top-tier cognitive science journal in March 2026.
+
+
+## Key Facts
+- LLM outputs show less variation than human writing (Sourati et al., 2026)
+- LLM outputs reflect primarily Western, educated, industrialized perspectives (Sourati et al., 2026)
+- Groups using LLMs generate fewer and less creative ideas than collective-only groups (Sourati et al., 2026)
+- People's opinions shift toward biased LLMs after interaction (Sourati et al., 2026)
+- Published in Trends in Cognitive Sciences, March 2026