{"id": "c1621", "title": "C1621 — Relate the new Flood connections to the primary head differences", "filename": "C1621.md", "role": "Research action", "step": 1621, "sha256": "6075dfe53388be895163b086736167f49a3e3b3060e59d66f74e8aae9f6b043b", "bytes": 1412, "origins": ["C480–C1634/Research_Cycles/C1585_C1634/journal.json#C1621"], "download": "/sources/6075dfe53388be895163b086736167f49a3e3b3060e59d66f74e8aae9f6b043b.md", "format": "md", "derived": true, "tags": [], "excerpt": "How do the locally shared Flood comparisons coexist with MT convergence and LXX/SP head displacement?", "content": "# C1621 — Relate the new Flood connections to the primary head differences\n\n## Question\n\nHow do the locally shared Flood comparisons coexist with MT convergence and LXX/SP head displacement?\n\n## Sources\n\n```json\n[\n  \"source_to_comparison_kernel.json\",\n  \"Comparative_Study §§3.1,3.3,7.2\"\n]\n```\n\n## Opened utc\n\n2026-09-29T15:04:17.527155+00:00\n\n## Results\n\n```json\n{\n  \"rows\": {\n    \"MT\": {\n      \"lower_Flood_difference\": -1580,\n      \"upper_difference\": 1580,\n      \"head_difference\": 0\n    },\n    \"LXX\": {\n      \"lower_Flood_difference\": 530,\n      \"upper_difference\": -30,\n      \"head_difference\": 500\n    },\n    \"SP\": {\n      \"lower_Flood_difference\": -5770,\n      \"upper_difference\": 5580,\n      \"head_difference\": -190\n    }\n  },\n  \"status\": \"reused primary arithmetic, now related to the new lower-Flood comparison modules\"\n}\n```\n\n## Finding\n\nEach primary mode gap is a lower-plus-upper balance: MT−1580+1580=0; LXX530−30=500; SP−5770+5580=−190. The new lower-node packets therefore complement, rather than replace, the original head explanation.\n\n## Reassessment\n\nSeparate source constraints from translation consequences in one dependency ledger.\n\n## Checks\n\n```json\n{}\n```\n\n## Closed utc\n\n2026-09-29T15:04:17.527708+00:00\n\n## Record provenance\n\nExact record hash: `4bd7f4ea99a31b68cc1623f498e3729786678e1853c85737ae2391a9797ae802`\n\nSource journal: `Research_Cycles/C1585_C1634/journal.json`", "journalDownload": "/sources/f14c0a7c2850e48750a0ea1779544db0428e79b64c4d6ae43137b5c361478239.json", "evidenceLinks": [{"id": "d-35b1bf34c65cc334", "title": "source_to_comparison_kernel.json"}]}