Comments by "John Berry" (@user-ud6ui7zt3r) on "Time Stops at the Speed of Light. What Does that Mean?" video.

  1. Sabine: YouTube doesn’t support 4D graphics. Elon: FIX THAT IMMEDIATELY
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  2. Let me try to get this straight. Because the result of... (𝑑₂ - 𝑑₁)Β² - (𝑦₂ - 𝑦₁)Β² ...goes to nearly ZERO whenever... (𝑑₂ - 𝑑₁)Β² ...is only slightly greater than... (𝑦₂ - 𝑦₁)Β² ...the resulting Square Root of... (𝑑₂ - 𝑑₁)Β² - (𝑦₂ - 𝑦₁)Β² ...will likewise be practically ZERO, therefore, physicists would say that the associated length of the World Line would be ZERO, meaning that "time" for Light has stopped (because the length of Light's World Line is practically ZERO.) All the same, note that this can happen when the result of... 𝑦₂ - 𝑦₁ ...is enormous, and the result of... 𝑑₂ - 𝑑₁ ...is simultaneously enormous. Do I interpret correctly? Also the MINUS OPERATOR between... (𝑑₂ - 𝑑₁)Β² ...and... (𝑦₂ - 𝑦₁)Β² ...is a bit suspicious. For Euclidean distance, the expression under the Square Root operator is... (π‘₯β‚‚ - π‘₯₁)Β² + (𝑦₂ - 𝑦₁)Β² ...which clearly has a PLUS OPERATOR between... (π‘₯β‚‚ - π‘₯₁)Β² ...and... (𝑦₂ - 𝑦₁)Β² .
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  3. Β @kylelochlann5053Β  Would I be correct to assert that... 𝑑𝑠 = 0 ...is the result of... (𝑑₂ - 𝑑₁) = 0 ...and because the 2nd expression expresses the Proper Time of a photon as ZERO, then the circumstance of a photon simply doesn't qualify for the Lorentzian Distance equation ? In other words, just like you said, photons do not have world-lines. This manner of describing the circumstance of Light drives me a little bit bananas when I try to "fit" this information with the Maxwell Equations' description of Light (i.e. a time-varying E-field sinusoid overlying a time-varying B-field sinusoid.) How can you have such Field sinusoids if no time is elapsing ?
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