What is 4D Raytracing? (Blackhole simulation) #SoME4

Comments · 261

• AI

  @aiyopasta · 1 year ago (edited) · pinned

  Thanks for watching! This is the comment I&apos;ll use to keep track of any mistakes in the video.<br><br>1. The &quot;b &gt; a&quot; and &quot;a &lt; b&quot; things should really have absolute values around &quot;a&quot; and &quot;b&quot;, as we only actually care about the magnitude of each component.<br>2. <a href="https://www.youtube.com/watch?v=FS8NotZ3diY&amp;t=1188">19:48</a> it should read (Mv)^\top (Mw), not (Mv)^\top (Mv). <br>3. &lt;more to be found&gt;

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• TH

  @their-username · 1 year ago

  Actually the best intro to relativity I&apos;ve ever watched.

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• SC

  @ScrimmyBingus42 · 1 year ago

  I&apos;m really beginning to understand that physics is just real life magic. This shit is absolutely incomprehensible

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• AN

  @AnymMusic · 1 year ago

  &quot;which is exactly what we&apos;ll need for our ray tracing here&quot; oh yeah, that&apos;s what the video was about

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• JA

  @JackBond1234 · 1 year ago

  Only one question... Huh?

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• LE

  @lewismassie · 1 year ago

  I want to make a simulation like this myself but every video I watch about them reminds me how I don&apos;t know enough yet in a new and exciting way

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• CA

  @carykh · 1 year ago

  I&apos;m really happy you got this video out Aditya! I only have cursory knowledge of Minkowski shit so it&apos;s fun to see how it gets more advanced. &nbsp;(In particular I love the realization at <a href="https://www.youtube.com/watch?v=FS8NotZ3diY&amp;t=1080">18:00</a> that the self-dot-product&apos;s sign categorizes all vectors into spacelike, timelike, and lightlike, that&apos;s really fascinating)

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• RO

  @roy04 · 1 year ago

  Alongside ScienceClic, this has got to be one of the most intuitive ways to visualize relativity

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• SP

  @SpiderBuh · 1 year ago

  I&apos;m doing a special relativity course and I had some homework for it due tomorrow. Deciding to watch this video at 3AM instead of sleeping helped me understand the math and graphs a bit more intuitively and I think I got through the work a lot quicker than I would&apos;ve otherwise! Awesome stuff

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• AK

  @akaHarvesteR · 1 year ago

  Hands down the coolest video on relativistic maths I&apos;ve ever seen! All other videos just talk about the equations and what tensors mean, you <i>actually used them</i> &nbsp;🤯<br><br>Absolutely brilliant! Holy crap!

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• KI

  @KingJAB_ · 1 year ago

  This is probably one the most well-visualized relativity videos I’ve seen on YouTube. ScienceClic, Dialect, Kuvina, Imagining Physics, and Carykh have a new competitor in the relativistic visualization industry. You just earned my subscription.

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• AR

  @ariaden · 1 year ago

  <a href="https://www.youtube.com/watch?v=FS8NotZ3diY&amp;t=280">4:40</a> Torsion free? <b>angry Einstein-Cartan noises</b>

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