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  "path": "/videos/scienceasylum-is-gravity-really-time-curvature/",
  "publishedAt": "2026-06-05T14:44:17.000Z",
  "site": "https://nebula.tv",
  "tags": [
    "Science",
    "https://youtu.be/F5PfjsPdBzg",
    "https://nebula.tv/videos/scienceasylum-is-the-universe-just-a-machine",
    "https://nebula.tv/videos/scienceasylum-a-defense-of-imperial-units",
    "https://nebula.tv/videos/scienceasylum-should-rulers-be-1-light-nanosecond-long",
    "https://www.scienceasylum.com",
    "https://www.patreon.com/ScienceAsylum",
    "https://www.youtube.com/channel/UCXgNowiGxwwnLeQ7DXTwXPg/join"
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  "textContent": "Six years ago, I posted a video about time curvature and gravity. It has become my most viewed video of all time. Does it hold up after six years?\n\nNick Lucid - Host, Writer, Editor, Animator\nEmily Lucid - Producer, Captions\n\n* * *\n\nORIGINAL VIDEO\n\nhttps://youtu.be/F5PfjsPdBzg\n\n* * *\n\nRECENT VIDEOS\n\nMechanics and Coordinates:\nhttps://nebula.tv/videos/scienceasylum-is-the-universe-just-a-machine\n\nFreedom Units:\nhttps://nebula.tv/videos/scienceasylum-a-defense-of-imperial-units\n\nLight Nanoseconds:\nhttps://nebula.tv/videos/scienceasylum-should-rulers-be-1-light-nanosecond-long\n\n* * *\n\nSUPPORT THE SCIENCE ASYLUM\n\nFor Direct Support, Merch, and Products:\nhttps://www.scienceasylum.com\n\nFor Alternative Support Options...\n\nPatreon:\nhttps://www.patreon.com/ScienceAsylum\n\nYouTube Membership:\nhttps://www.youtube.com/channel/UCXgNowiGxwwnLeQ7DXTwXPg/join\n\n* * *\n\nHUGE THANK YOU TO THESE SUPPORTERS\n\nAsylum Orderlies:\nChloë Joan López, Dhruv Singhal, James Smith, Joel Wolhendler, Peter Engrav\n\nAsylum VIPs:\nBenjamin Sharef, Eoin O'Sullivan, Jonathan Lima, Joseph Salomone, Kevin Flanagan, Matias Cveczilberg, Al Davis, Compuart, Kevin MacLean, Rick Myers, JJS, Christopher Bennett, Clayton Bruckert, David Johnston, E. W. Darbyshire, Jonathan Reel, Li-Ce Hu, Localverse, Mr. Orn Jonasar, Ulrich\n\n* * *\n\nTIME CODES\n\n00:00 Intro\n00:57 Time vs Space Curvature\n01:58 Tall Building Thought Experiment\n03:17 How Photon Clocks Work\n04:07 Bad Naming Choices\n05:18 Gravity Depends On Time\n07:10 Clocks and Coordinates\n08:15 Spacetime Diagrams\n08:54 The Time Axis\n09:35 Fluid Analogy\n10:31 The Time Axis (Revisited)\n11:15 Four Velocity\n12:20 Suppressed Dimensions\n13:07 Does Time Flow?\n13:59 Calculus Differentials\n14:54 Time Is More Fundamental\n15:21 Abrupt Endings\n15:33 Closing Thoughts",
  "title": "Is Gravity REALLY Time Curvature?!"
}