Phase 7.2

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Evidence, disagreement and workflow stay separate. Approval remains a human action.

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auto-c845191c8ff1-01 · v1

Why doesn't gold tarnish, while other metals do?

Mechanism: Gold is highly unreactive because it's a 'noble metal'. More specifically, gold atoms are less likely to react with others due to quantum effects tied to special relativity and a phenomenon called surface reconstruction.

Payoff: You learn the real reasons behind gold’s famous resistance to tarnishing—an explanation that goes beyond the basic high-school answer.

Factual: pendingApproval: pending1 evidence links

Performance

10.32× medianBaseline: 46

Evidence

1youtube

Duplicates

0Exact component-level matches

Limitations

0No missing signal is coerced to zero
Evidence1
youtube · youtube.video
09Zd9k-szWwOpen source
Payload
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    "tags": [
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      "Why Doesn't Gold Tarnish?",
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    ],
    "title": "Why Doesn't Gold Tarnish?",
    "channelId": "UCZYTClx2T1of7BRZ86-8fow",
    "localized": {
      "title": "Why Doesn't Gold Tarnish?",
      "description": "Why doesn't gold tarnish? A simple answer might be that it's a so-called \"noble metal\"—its atoms don't like to chemically react with others. But a more complex answer also answers *why* gold atoms are so unreactive. Some of it is due to special relativity, and some is due to a phenomenon called reconstruction.\n\nHosted by: Hank Green (he/him)\n----------\nSupport us for $8/month on Patreon and keep SciShow going!\nhttps://www.patreon.com/scishow\nOr support us directly: https://complexly.com/support\nJoin our SciShow email list to get the latest news and highlights: \nhttps://mailchi.mp/scishow/email\n----------\nHuge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: ., Adam Brainard, Alex Hackman, Anita, Anne Herrington, Ashley Moquin, Bethany Matthews, Blood Doctor Kelly, Chris Curry, Chris Mackey, Chris Peters, Cye Stoner, David Johnston, Eric Jensen, Friso, Garrett Galloway, J.V. Rosenbalm, Jaap Westera, Jacob Puthoff, Jason A Saslow, Jeremy Mattern, Jon Coffman, Joseph Ruf, Jp Lynch, Kevin Bealer, Kevin Knupp, Lyndsay Brown, Matt Curls, Piya Shedden, Shaji John, Steve Gums, Timos Gies, Toyas Dhake, yeyette\n----------\nLooking for SciShow elsewhere on the internet?\nSciShow Tangents Podcast: https://scishow-tangents.simplecast.com/\nTikTok: https://www.tiktok.com/@scishow \nInstagram: http://instagram.com/thescishow\nFacebook: http://www.facebook.com/scishow\nBluesky: https://bsky.app/profile/scishow.bsky.social\n\n#SciShow #science #education #learning #complexly\n----------\nSources: https://docs.google.com/document/u/1/d/e/2PACX-1vTm5pQrbrNpylnuwLf6y9s5ZcL_VMudbX8U4QjldO5yXOuy-14ay4T2ABHjkH8SVsRoM9bS8MiKkraa/pub"
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    "description": "Why doesn't gold tarnish? A simple answer might be that it's a so-called \"noble metal\"—its atoms don't like to chemically react with others. But a more complex answer also answers *why* gold atoms are so unreactive. Some of it is due to special relativity, and some is due to a phenomenon called reconstruction.\n\nHosted by: Hank Green (he/him)\n----------\nSupport us for $8/month on Patreon and keep SciShow going!\nhttps://www.patreon.com/scishow\nOr support us directly: https://complexly.com/support\nJoin our SciShow email list to get the latest news and highlights: \nhttps://mailchi.mp/scishow/email\n----------\nHuge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: ., Adam Brainard, Alex Hackman, Anita, Anne Herrington, Ashley Moquin, Bethany Matthews, Blood Doctor Kelly, Chris Curry, Chris Mackey, Chris Peters, Cye Stoner, David Johnston, Eric Jensen, Friso, Garrett Galloway, J.V. Rosenbalm, Jaap Westera, Jacob Puthoff, Jason A Saslow, Jeremy Mattern, Jon Coffman, Joseph Ruf, Jp Lynch, Kevin Bealer, Kevin Knupp, Lyndsay Brown, Matt Curls, Piya Shedden, Shaji John, Steve Gums, Timos Gies, Toyas Dhake, yeyette\n----------\nLooking for SciShow elsewhere on the internet?\nSciShow Tangents Podcast: https://scishow-tangents.simplecast.com/\nTikTok: https://www.tiktok.com/@scishow \nInstagram: http://instagram.com/thescishow\nFacebook: http://www.facebook.com/scishow\nBluesky: https://bsky.app/profile/scishow.bsky.social\n\n#SciShow #science #education #learning #complexly\n----------\nSources: https://docs.google.com/document/u/1/d/e/2PACX-1vTm5pQrbrNpylnuwLf6y9s5ZcL_VMudbX8U4QjldO5yXOuy-14ay4T2ABHjkH8SVsRoM9bS8MiKkraa/pub",
    "publishedAt": "2026-10-15T17:00:17Z",
    "channelTitle": "SciShow",
    "defaultLanguage": "en",
    "defaultAudioLanguage": "en",
    "liveBroadcastContent": "none"
  },
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    "likeCount": "7061",
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Advocate / Skeptic2
skepticsupport

The candidate topic and explanatory framing are well-supported by both the source video's performance and by how directly the creative_fit describes self-recognition, natural curiosity, a high-value explanation, and channel transferability. The original video's stellar engagement compared to baseline and median channel views demonstrates that the question resonates. The framing does not rely on spectacle or suspenseful transformation, but rather promises insight into a common observation, with a novel and satisfying scientific answer. There are no scorecard limitations or missing evidence undermining this explanatory topic's suitability; all requirements—mechanism preservation, explanation value, self-recognition, and answer novelty—are addressed. No alternative interpretations are better supported by the supplied evidence.

  • The source video's high outlier factor (10.3x channel median) and robust z-score (1.14) demonstrate unusually strong audience engagement for this question and explanatory format.
  • The video description and creative_fit both confirm that the appeal is based on explanation and relatable curiosity (why gold doesn't tarnish), not on spectacle, transformation, or viral oddity.
  • Creative_fit explicitly notes a natural, common question (self-recognition: medium) and a highly novel answer (relativity and surface reconstruction) that goes beyond textbook knowledge, leading to high explanation value and channel transferability.
  • No scorecard limitations or evidence gaps exist challenging the premise, mechanism, or payoff. All required creative and content elements are clearly addressed.
openai.responses:gpt-4.1:topic-evaluation-json-schema-v1
advocatesupport

The candidate question—'Why doesn't gold tarnish, while other metals do?'—is directly aligned with a topic that has demonstrated strong performance as a standalone explanatory video. The evidence shows outlier-level engagement (views/day >10x channel median), validating both high relatability and audience appetite for a deeper scientific dive. The creative_fit review confirms that success comes from curiosity and explanation, not spectacle or transformation, and explicitly notes high explanation value, answer novelty, and channel transferability. This fit, alongside the robust performance data, strongly supports testing the candidate, with no material shortcomings identified in the available evidence.

  • Exceptionally strong audience performance (views per day ~98k vs. channel median ~9.6k; outlier factor 10.3x) indicates the topic's wide appeal and potential for standalone explanation.
  • Creative_fit review finds high relatability (common observation), high explanation value, high novelty in the answer (special relativity and atomic effects), and high potential to adapt the topic across channels and formats.
  • The video's success is not due to a visual spectacle, transformation, or suspense, but to audience curiosity and the delivery of a satisfying, novel scientific explanation, making it an ideal explanatory candidate.
  • Limitations are not called out in the scorecard, and there is no evidence of mechanism or framing mismatch—the candidate preserves the source video's core appeal.
openai.responses:gpt-4.1:topic-evaluation-json-schema-v1
Duplicate signals0

No exact component matches.

Limitations0

No explicit limitations recorded.

    Factual review
    Editorial approval
    Audit trail0