there was this last year, about isochrone maps: https://news.ycombinator.com/item?id=39808215 https://news.ycombinator.com/item?id=39808215 not sure how these

there was this last year, about isochrone maps: https://news.ycombinator.com/item?id=39808215 https://news.ycombinator.com/item?id=39808215 not sure how these apply to variants like 10mins by feet vs by 10mins bike vs by bus vs by metro vs by car vs by airplane :)