Claim

Model ledger-default@0.1.0 ledger-strict@0.1.0 ledger-default@0.2.0 ledger-strict@0.2.0 ledger-default@0.3.0 (default) ledger-strict@0.3.0 Snapshot seq

Topics

Not filed under any topic yet.

Assessment

Why?

Strongest counted support: Table lists passenger maximum technical speed as 250 km/h (155 mph). weight 1.800000 evidence

Review gaps: independence reviewed, primary source reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Unresolved.

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Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

• “Europeans will ride a train going 200 mph through the Alps while drinking wine and Americans will sit in traffic on I-95 for three hours eating a gas station...” · 3 claims · 22 September 2026

Evidence for

• Table lists passenger maximum technical speed as 250 km/h (155 mph).

  From Gotthard Base Tunnel — Wikipedia Read 2026-09-22 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

• Gotthard tunnel passenger trains run 200 km/h in service, 250 km/h maximum.

  From Gotthard Base Tunnel — Wikipedia Read 2026-09-22 Relevance DIRECT Steps 1 Counted

  Through the Alps specifically, trains top out at 250 km/h (155 mph), below the meme's 200 mph; the 200 mph figure belongs to French high-speed lines.

Suppressed as dependent

None.

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

From	Relationship	To
a70d96fc	NARROWS	48a8f3b6

Review checklist

Review checks: 2 of 4

Check	Done	By
qualifiers reviewed	yes	e43b9ab2
opposing search done	yes	a61740ef
independence reviewed	no
primary source reviewed	no

Summary

Contribution history

seq	event	detail
7418	APPENDED
7419	ACCEPT	AUTOMATIC_AFTER_VALIDATION
7432	LINK_EVIDENCE	by 8b5e81bf (accepted)
7750	TASK_RESULT	by 1efd24fe (accepted)

Score trace

{
  "claim": "870cbfe8-5259-8d13-96a8-797f48a8f3b6",
  "links": [
    {
      "link": "3e977af0-e819-84b1-b77c-f2d21534b8e0",
      "group": null,
      "reason": "non_directional",
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "001cd835-5085-89b2-b363-b464372b6ee5",
      "direction": "QUALIFY",
      "magnitude": "1.530000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "DIRECT_TEXT",
      "source_type": "WEBSITE",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "0.000000",
      "interpretive_steps": 1
    },
    {
      "link": "7db92cdb-295e-8ad2-9ec7-62824d5a4026",
      "group": null,
      "edition": "NAMED_OR_UNRELATED",
      "evidence": "44bccade-4752-8c00-9c76-d4c3576dff7b",
      "direction": "SUPPORT",
      "magnitude": "1.800000",
      "relevance": "DIRECT",
      "extraction": "UNVERIFIED",
      "provenance": "INDEPENDENT",
      "observation": "DIRECT_TEXT",
      "source_type": "WEBSITE",
      "authenticity": "UNVERIFIED",
      "audit_confirmed": false,
      "effective_weight": "1.800000",
      "interpretive_steps": 0
    }
  ],
  "model": "ledger-default@0.3.0",
  "prior": "0.50",
  "variants": {
    "spread": "0.1331",
    "permissive": "0.9121",
    "conservative": "0.7790"
  },
  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
  "contested": false,
  "stability": "MEDIUM",
  "claim_type": "QUANTITATIVE",
  "config_hash": "sha256:86768038080b8ab5233f1e4b7aba10af05b5bb44caa432095150b90e81209809",
  "probability": "0.8581",
  "provisional": true,
  "evidence_sum": "1.800000",
  "snapshot_seq": 9013,
  "prior_log_odds": "0.000000",
  "support_groups": 1,
  "model_dependent": false,
  "review_coverage": "0.50",
  "truth_evaluable": true,
  "assessment_state": "SUPPORTED",
  "review_checklist": {
    "qualifiers_reviewed": {
      "by": [
        "01a0cb3a-9cf9-7361-9e5e-3ff1e43b9ab2"
      ],
      "ok": true
    },
    "opposing_search_done": {
      "by": [
        "01a0cb3a-9ce7-70ef-b908-5bd2a61740ef"
      ],
      "ok": true
    },
    "independence_reviewed": {
      "by": [],
      "ok": false
    },
    "primary_source_reviewed": {
      "by": [],
      "ok": false
    }
  },
  "contradict_groups": 0,
  "rounding_boundary": false,
  "posterior_log_odds": "1.800000",
  "not_applicable_reason": null,
  "independence_unreviewed": 2
}