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

Neuroscience · d6193340 Statistics · d6193340

Assessment

Why?

Strongest counted contradiction: The excerpt says humans use virtually every part of the brain and most of it is active almost all the time, contradicting the ten-percent claim. weight 1.800000 evidence

Suppressed as dependent: Neurologist Barry Gordon states that people use virtually every part of the brain and that most of it is active almost all the time.

Review gaps: independence reviewed, primary source reviewed

What would most change this: One independent, direct measurement that supports this claim would move it from Contradicted to Contradicted.

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

• “FACT CHECK YOUR TEACHERS 🧠 Humans only use 10% of their brains. Einstein failed math as a kid and still changed physics. The Great Wall of China is the only...” · 8 claims · 19 September 2026

Evidence for

None.

Evidence against

• Neurologist Barry Gordon states that people use virtually every part of the brain and that most of it is active almost all the time.

  From Do People Only Use 10 Percent of Their Brains? (Scientific American) Read 2026-09-18 Relevance STRONG Steps 0 Counted

  An expert statement that the whole brain is used contradicts the ten percent figure.

• Brain scans show that all brain areas are active regardless of activity.

  From Ten percent of the brain myth (Wikipedia) Read 2026-09-18 Relevance DIRECT Steps 0 Counted

• The excerpt says humans use virtually every part of the brain and most of it is active almost all the time, contradicting the ten-percent claim.

  From Do People Only Use 10 Percent of Their Brains? (Scientific American) Read 2026-09-18 Relevance DIRECT Steps 0 Counted

Qualifications

• At certain moments, such as resting and thinking, a person may be using only about ten percent of the brain.

  From Do People Only Use 10 Percent of Their Brains? (Scientific American) Read 2026-09-18 Relevance MODERATE Steps 1 Counted

  The only sense in which ten percent holds: momentary activity at rest, not capacity.

Suppressed as dependent

Evidence	Group	Kept instead
2fdf7206		dcf83eea

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

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 2 of 4

Check	Done	By
qualifiers reviewed	yes	99a61afd
opposing search done	yes	73d532f3
independence reviewed	no
primary source reviewed	no

Summary

Contribution history

seq	event	detail
148	APPENDED
149	ACCEPT	AUTOMATIC_AFTER_VALIDATION
158	LINK_EVIDENCE	by eb3bac87 (accepted)
160	LINK_EVIDENCE	by eb3bac87 (accepted)
162	LINK_EVIDENCE	by eb3bac87 (accepted)
8366	TASK_RESULT	by 1efd24fe (accepted)