Performance
5.19× medianBaseline: 20Phase 7.2
Candidate review
Evidence, disagreement and workflow stay separate. Approval remains a human action.
auto-a2fb8594a7ad-02 · v1
Why do seashells sound like the ocean—what is that rushing noise when you hold one to your ear?
Mechanism: common observation, explanation, misconception
Payoff: Challenging the misconception: the sound isn’t the sea, but ambient noise remixed by the shell’s shape.
Evidence
1youtubeDuplicates
0Exact component-level matchesLimitations
0No missing signal is coerced to zeroEvidence1
youtube · youtube.video
oyj8kYnrj-AOpen sourcePayload
{
"id": "oyj8kYnrj-A",
"etag": "_g_JsoL7HNntpptX7A_y9l3QM78",
"kind": "youtube#video",
"snippet": {
"tags": [
"why seashells sound like the ocean",
"seashell ocean sound",
"why shells sound like waves",
"seashell sound explained",
"ocean sound in a shell",
"science facts",
"interesting facts",
"sound resonance",
"acoustic resonance",
"how seashells work",
"why can you hear the ocean in a shell",
"seashell experiment",
"everyday science",
"ocean facts",
"sound waves explained",
"surprising science facts",
"educational shorts",
"viral science shorts",
"YouTube Shorts",
"science shorts",
"fun facts"
],
"title": "The Ocean Sound in a Seashell Is FAKE?!",
"channelId": "UCPPsX5AH3PH59czjKzAryZQ",
"localized": {
"title": "The Ocean Sound in a Seashell Is FAKE?!",
"description": "That mysterious ocean sound inside a seashell is not the sea. The shell’s hollow chambers amplify and remix everyday background noise, creating a rushing sound your brain interprets as waves. Even an empty cup or your cupped hand can produce a similar illusion!\n\n#Science #Seashell #OceanFacts #SoundScience #InterestingFacts #DidYouKnow #Shorts"
},
"categoryId": "24",
"thumbnails": {
"high": {
"url": "https://i.ytimg.com/vi/oyj8kYnrj-A/hqdefault.jpg",
"width": 480,
"height": 360
},
"maxres": {
"url": "https://i.ytimg.com/vi/oyj8kYnrj-A/maxresdefault.jpg",
"width": 1280,
"height": 720
},
"medium": {
"url": "https://i.ytimg.com/vi/oyj8kYnrj-A/mqdefault.jpg",
"width": 320,
"height": 180
},
"default": {
"url": "https://i.ytimg.com/vi/oyj8kYnrj-A/default.jpg",
"width": 120,
"height": 90
},
"standard": {
"url": "https://i.ytimg.com/vi/oyj8kYnrj-A/sddefault.jpg",
"width": 640,
"height": 480
}
},
"description": "That mysterious ocean sound inside a seashell is not the sea. The shell’s hollow chambers amplify and remix everyday background noise, creating a rushing sound your brain interprets as waves. Even an empty cup or your cupped hand can produce a similar illusion!\n\n#Science #Seashell #OceanFacts #SoundScience #InterestingFacts #DidYouKnow #Shorts",
"publishedAt": "2026-07-31T20:05:29Z",
"channelTitle": "Interesting Fact Lab",
"defaultLanguage": "en",
"defaultAudioLanguage": "en",
"liveBroadcastContent": "none"
},
"statistics": {
"likeCount": "15",
"viewCount": "581",
"commentCount": "2",
"favoriteCount": "0"
},
"contentDetails": {
"caption": "false",
"duration": "PT37S",
"dimension": "2d",
"definition": "hd",
"projection": "rectangular",
"contentRating": {},
"licensedContent": false
}
}Advocate / Skeptic0
No evaluations recorded.
Duplicate signals0
No exact component matches.
Limitations0
No explicit limitations recorded.
Audit trail2
factual_reviewpending → passedchatgpt-codexpro
approvalpending → approvedchatgpt-codexpro