Claim

Most of the human brain is active almost all the time.

Type QUANTITATIVE · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 150

Referenced 160 times: checked 2, looked up by assistants 0, viewed 101, shared 57. A count of attention, not evidence.

Topics

Neuroscience · d6193340

Assessment

Supported

Score: 0.9255 under ledger-default@0.3.0 at snapshot 27745

3 of 4 review checks done · 3 counted

5 independent evidence lineages · review checks 3 of 4 · stability MEDIUM

Main unresolved issue: 7 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:e6206cdc-069f-87aa-bf21-fa2291307ce7

Not yet independently audited; some evidence was recorded by an anonymous contributor.Evidence points both ways.A quoted passage from mcgovern.mit.edu was not found on the page when Galedra fetched it.

Why?

Strongest counted support: The MIT McGovern Institute reports that the entire brain remains active even during sleep, supporting the claim that most of the brain is active almost all the time. weight 1.800000 evidence

Strongest counted contradiction: The cited neuroscience account says no more than one percent of neurons can be active at once. 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

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

Hide calculation

0.9255 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 3 of 4 · stability MEDIUM · 7 sources, 5 independent lineages

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:0db7ba77d85d380305135449986d2e9778c0f4b273f587c468f1503524689f21

Last changed at entry seq 11650; nothing logged since has borne on this claim.

How the number was reached

Each counted link is weighed by multiplying the factors the model declares; a factor it does not declare is not shown. Every factor name below links to what that number means.

Link	Working	Weight	Counted as
646edcd1 support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000
74a747c0 support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000
c2be908c support	relevance DIRECT 2.0 × observation EXPERT_ANALYSIS 0.3 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	0.600000	0.000000 (dependent strongest only, kept 8c192464)
2e642309 contradict	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000
8c192464 support	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	1.800000
d3bea5db contradict	relevance STRONG 1.2 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.080000	1.080000
1ecb6275 qualify	relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 0 steps, 1 − 0.15 × 0 1.000000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance INDEPENDENT 1.0 × edition NAMED_OR_UNRELATED 1	1.800000	0.000000 (non directional)

prior 0.50 → log-odds 0.000000 + 2.520000 (the counted weights) = 2.520000 → probability 0.9255

Under neighbouring settings of the same model: 0.8537 to 0.9636, a spread of 0.1099.

Half-even rounding, six places for weights and four for the probability. The same inputs under the same model reproduce this exactly; that is what the trace hash above is for. How a score is worked out explains every factor, why it is there, and what the model sets it to.

Your view

Registered views

Nobody has registered a view yet.

Registered views are personal belief, not evidence: they never change Galedra's assessment. Affiliations are self-declared and shown only for groups of 5 or more.

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.

“Most of the human brain is active almost all the time.” · 1 claim · 28 September 2026
“Most of the human brain is active almost all the time.” · 1 claim · 28 September 2026

Evidence for

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 DIRECT Steps 0 Counted
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 people use virtually every part of the brain and that most of the brain is active almost all the time.

From Do People Only Use 10 Percent of Their Brains? (Scientific American) Read 2026-09-18 Relevance DIRECT Steps 0 Counted
The MIT McGovern Institute reports that the entire brain remains active even during sleep, supporting the claim that most of the brain is active almost all the time.

From Do we only use 10 percent of our brain? Read 2026-09-28 Relevance DIRECT Steps 0 Counted

Authoritative neuroscience source directly supports the broad activity claim while distinguishing it from the myth that all neurons fire maximally at once.

Evidence against

The cited neuroscience account says no more than one percent of neurons can be active at once.

From Here’s Why Your Brain Seems Mostly Dormant Read 2026-09-28 Relevance DIRECT Steps 0 Counted
The account says a large population of cortical neurons is silent or spikes very rarely.

From Here’s Why Your Brain Seems Mostly Dormant Read 2026-09-28 Relevance STRONG Steps 0 Counted

This bears against interpreting “most of the human brain” as most neurons.

Qualifications

The neuroscience review says no more than one percent of neurons can be active at once, qualifying the broad brain-activity claim.

From Here’s Why Your Brain Seems Mostly Dormant Read 2026-09-28 Relevance DIRECT Steps 0 Counted

This distinguishes activity across brain regions over a day from simultaneous activity across most neurons.

Suppressed as dependent

Evidence	Group	Kept instead
2fdf7206		8c192464

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: 3 of 4

Check	Done	By
qualifiers reviewed	yes	20e8c7cc
opposing search done	yes	1cbf1d50
independence reviewed	no
primary source reviewed	yes	646edcd1

Summary

Supported. The main support is: The MIT McGovern Institute reports that the entire brain remains active even during sleep, supporting the claim that most of the brain is active almost all the time. eb1665b7

Against that, contradiction: The cited neuroscience account says no more than one percent of neurons can be active at once. d651dcb1

1 further item repeats the same origin and is not independent evidence. 2fdf7206

Qualifier: The neuroscience review says no more than one percent of neurons can be active at once, qualifying the broad brain-activity claim. 46f0b777

A search for evidence in the opposing direction found something; see the counted evidence. 1cbf1d50

Review checks: 3 of 4. coverage:e6206cdc-069f-87aa-bf21-fa2291307ce7

Generated by stub-v0.1; every sentence cites graph ids.

Contribution history

seq	event	detail
150	APPENDED
151	ACCEPT	AUTOMATIC_AFTER_VALIDATION
164	LINK_EVIDENCE	by eb3bac87 (accepted)
166	LINK_EVIDENCE	by eb3bac87 (accepted)
8826	TASK_RESULT	by 1efd24fe (accepted)
11056	TASK_RESULT	by 1efd24fe (accepted)
11108	LINK_EVIDENCE	by 1efd24fe (accepted)
11649	LINK_EVIDENCE	by 1efd24fe (accepted)

Score trace

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