[rottencupcakes]

These actually point of a failure mode of the original topic's visualization, at least as it pertains to public transit: https://upload.wikimedia.org/wikipedia/commons/thumb/4/40/Ma...

(I think a previous commenter called this out by referring to subways as "wormholes")

As for car directions, you should be able to create an isochron by drawing circles in the transformed map!

[vvolhejn]

Yes! The fact that isochrones become circles is one of my favorite things about this. I also discuss this in the video (https://youtu.be/rC2VQ-oyDG0?t=134) I made about these.