Earlier quoted context omitted.
And the fact that the distortion is preset and not based on where you click. This is one of those things using heat maps where the clustering is clearly large population centers. Not really as helpful/useful as people think they are
Why would where you click matter? Two points are always the same time apart from each other regardless of reference to any third point.
Spacetime maps: A map that warps to show travel time
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Re: Spacetime maps: A map that warps to show travel time
#12TBH kind of disappointed by how little it distorts, especially for cities with stereotypically difficult travel times by car like LA. almost loos like random distortions as opposed to something to pattern match. Really the only thing noticeable is bodies of water distort the map the most (which explains why LA doesn't get that distorted). Would be kind of nice for when i click the point that all the points distort ba…
And the fact that the distortion is preset and not based on where you click. This is one of those things using heat maps where the clustering is clearly large population centers. Not really as helpful/useful as people think they are
Re: Spacetime maps: A map that warps to show travel time
#13Earlier quoted context omitted.
Why would where you click matter? Two points are always the same time apart from each other regardless of reference to any third point.
because warping of spacetime is relative
However in the real city the transit speed at any point is not isotropic, the space is 3-D, and some paths are forbidden (getting on-off the train between stops).
Re: Spacetime maps: A map that warps to show travel time
#14Earlier quoted context omitted.
because warping of spacetime is relative
If the analogy to warped spacetime was exact, then there would be a “scale factor” for every point depending on the local transit speed. Then it would be possible to do as this page does and for the answer not to depend on starting point. However in the real city the transit speed at any point is not isotropic, the space is 3-D, and some paths are forbidden (getting on-off the train between stops).
Re: Spacetime maps: A map that warps to show travel time
#15Re: Spacetime maps: A map that warps to show travel time
#16Re: Spacetime maps: A map that warps to show travel time
#17Like the idea - lived in LA my whole life and it wasn’t until the start of covid, when I was able to commute across huge swaths of the city in the order of dozens of minutes rather than hours, did I realize how distorted my view of its physical size was - in places like LA, when asked how far something is, an angelino will almost always respond in a measurement of time rather than distance.
Re: Spacetime maps: A map that warps to show travel time
#18Like the idea - lived in LA my whole life and it wasn’t until the start of covid, when I was able to commute across huge swaths of the city in the order of dozens of minutes rather than hours, did I realize how distorted my view of its physical size was - in places like LA, when asked how far something is, an angelino will almost always respond in a measurement of time rather than distance.
haha, I had the same realization after I moved from San Diego. Nobody in Albuquerque wanted to hear "20 minutes" when asking "How far is X?"
Re: Spacetime maps: A map that warps to show travel time
#19Like the idea - lived in LA my whole life and it wasn’t until the start of covid, when I was able to commute across huge swaths of the city in the order of dozens of minutes rather than hours, did I realize how distorted my view of its physical size was - in places like LA, when asked how far something is, an angelino will almost always respond in a measurement of time rather than distance.
Re: Spacetime maps: A map that warps to show travel time
#20Like the idea - lived in LA my whole life and it wasn’t until the start of covid, when I was able to commute across huge swaths of the city in the order of dozens of minutes rather than hours, did I realize how distorted my view of its physical size was - in places like LA, when asked how far something is, an angelino will almost always respond in a measurement of time rather than distance.
In the New York City area time is the measure of distance. I think that's the same in every large Metro area.