> In many ways, the lack of density actually makes it easier for you to install new lines. It's a lot easier and faster to plow through a long strip of grass next to a highway than it is to deal with a built up ubran location (I've actually done this work).

If endpoints are spread too far out, it's not hard technically to connect them, but it might be very expensive and not feasible economically.

If density is too high on the other hand (say NYC), it's becoming hard to technically connect, because, as you mentioned, there's already a lot of "stuff" there that you have to be careful about. But it might be much more interesting economically.

I think Switzerland just hits a sweet spot between these two. It's dense enough to be profitable but sparse enough to make construction still feasible. So essentially, we're just lucky.