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Claim

Terence Tao previously flagged that the right initial conditions in an idealized fluid could in principle produce a self-replicating machine making ever-smaller copies of itself.

Type OBSERVATIONAL · truth-evaluable: yes · status at snapshot: ACTIVE · created seq 1975

Referenced 109 times: checked 1, looked up by assistants 0, viewed 106, shared 2. A count of attention, not evidence.

Topics

Mathematics · 03192ed8 Physics · 03192ed8

Assessment

Supported

Score: 0.9993 under ledger-default@0.3.0 at snapshot 27745

3 of 4 review checks done · 3 counted

4 independent evidence lineages · review checks 3 of 4 · stability HIGH

Main unresolved issue: 7 counted evidence items have no independence review; repeats of one origin may be counted as several coverage:23be35a1-e20c-8208-a855-b15f516b6b60

Not yet independently audited.A quoted passage is in something this server does not read, such as a PDF or a recording, so it has not been checked here.

Why?

Strongest counted support: Tao described a fluid robot programmed to create a smaller version of itself, iterating smaller and faster via the equations' scaling symmetry. weight 1.800000 evidence

Suppressed as dependent: The passage says Tao flagged that the right initial conditions in a fluid could create a self-replicating machine making smaller copies.; Speaker says Tao had flagged that right initial conditions in a fluid could in principle create a self-replicating machine making smaller copies.

Review gaps: independence reviewed

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

Hide calculation

0.9993 under ledger-default@0.3.0 at snapshot 27745 · state Supported · Review checks: 3 of 4 · stability HIGH · 7 sources, 4 independent lineages

Model ledger-default@0.3.0 (the default model, not the answer) · snapshot 27745 · trace sha256:26e95ed5b80dafad613a93220bdbeda0fa4beb082d30c3ef84a5b25db3319739

Last changed at entry seq 9852; 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.

LinkWorkingWeightCounted as
c95ec4cf 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
7f7c194d 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
21d390e4 support relevance DIRECT 2.0 × observation DIRECT_TEXT 0.9 × interpretation 1 step, 1 − 0.15 × 1 0.850000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance SELF 0.0 × edition NAMED_OR_UNRELATED 1 0.000000 0.000000 (dependent strongest only, kept ac4481c1)
ac4481c1 support relevance WEAK 0.2 × observation HEARSAY 0.1 × interpretation 2 steps, 1 − 0.15 × 2 0.700000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance SELF 0.0 × edition NAMED_OR_UNRELATED 1 0.000000 0.000000
979f88d7 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
482ca9ae support relevance STRONG 1.2 × observation HEARSAY 0.1 × interpretation 1 step, 1 − 0.15 × 1 0.850000 × authenticity UNVERIFIED 1.0 × extraction UNVERIFIED 1.0 × provenance SELF 0.0 × edition NAMED_OR_UNRELATED 1 0.000000 0.000000 (dependent strongest only, kept ac4481c1)
829c0c20 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

prior 0.50 → log-odds 0.000000 + 7.200000 (the counted weights) = 7.200000 → probability 0.9993

Under neighbouring settings of the same model: 0.9936 to 0.9999, a spread of 0.0063.

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

Sign in to register whether you agree or disagree. A view is yours alone and never changes the assessment.

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.

Evidence for

Evidence against

None.

Qualifications

None.

Suppressed as dependent

EvidenceGroupKept instead
1027cf92ac4481c1
af2e6020ac4481c1

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

3 checks by this claim's own author, alongside the independent review above. 1 OPPOSING EVIDENCE SEARCH · 1 QUALIFIER CHECK · 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

CheckDoneBy
qualifiers reviewedyes6e45f738
opposing search doneyesde180b37
independence reviewedno
primary source reviewedyes7f7c194d, 829c0c20

Summary

Supported. The main support is: Tao described a fluid robot programmed to create a smaller version of itself, iterating smaller and faster via the equations' scaling symmetry. d37c5dbd

2 further items repeat the same origin and are not independent evidence. 1027cf92af2e6020

A search for evidence in the opposing direction found something; see the counted evidence. de180b37

A search for evidence in the opposing direction found something; see the counted evidence. de180b37

Review checks: 3 of 4. coverage:23be35a1-e20c-8208-a855-b15f516b6b60

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

Contribution history

seqeventdetail
1975APPENDED
1976ACCEPTAUTOMATIC_AFTER_VALIDATION
2133LINK_EVIDENCEby 03192ed8 (accepted)
3818TASK_RESULTby 03192ed8 (accepted)
7188TASK_RESULTby 8b5e81bf (accepted)
9380TASK_RESULTby 1efd24fe (accepted)
9851TASK_RESULTby 1efd24fe (accepted)

Score trace

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  "code_hash": "sha256:c61a6fdf35a754a0d7e958df149036a083c0eaeb7d2d2e52704ec32b0c36def7",
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