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Comment on The train that never came; how maglev technology was derailed

It is not linear but some sort of hyberpolic function as the OP is describing: double the speed and you halve the travel time, you move closer to zero travel time but never reach it. With a linear relation you would reach zero travel time at a specific speed point.

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CanadaPlus@lemmy.sdf.org ⁨3⁩ ⁨days⁩ ago
Travel time is distance/speed. I suppose that’s only linear in distance in the technical sense, being inversely proportional to speed, but the point that there’s no dark magic or non-elementary school math involved stands.

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- pheet@sopuli.xyz ⁨2⁩ ⁨days⁩ ago
  
  Travel time is just distance/speed And that makes the function like ’y = 1/x’ which is not a linear function. No dark magic, just math. The gist is the proportial part, not just inversely.
  
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  - CanadaPlus@lemmy.sdf.org ⁨1⁩ ⁨day⁩ ago
    Yes, you’re technically right, that’s at least what I was trying to say. “Linear” and “everything is in a multiplicative relation” are really close in my head, though, so I made a mistake.
    
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