[AnthonyMouse]

The trouble with that is you then involve the government with the technology.

Suppose we did as you say 30 years ago. The government would install phone lines and use DSL to carry internet traffic for competing ISPs.

The performance of DSL was fine 30 years ago, but now it's slow, and no ISP is allowed to install anything faster because in your system the government has a monopoly. The government could upgrade it, but that costs money and getting the government to spend money upgrading infrastructure has been a recurring problem. So now you're stuck with DSL.

Whereas if the government just runs conduit, and then Verizon is using DSL from 30 years ago, Sonic can come in at any time and install fiber. Which spurs Verizon to install fiber because now they have competition.

You want the monopoly to be made as narrow as possible. But the natural monopoly isn't layer 2, it's not even the entirety of layer 1. It's the road, and the high cost of digging the trench. Once you have the conduit, the cost of having a hundred ISPs string fiber through it is minor, so doing that should be open to competition.

[bryanlarsen]

Maintaining the road system on an inadequate budget is a lot harder than maintaining a fibre optic system, and yet municipalities do a passable job at that. They do a heck of a lot better at their jobs than cable companies do of maintaining their network.

That's a major point of my analogy -- having the road system being anything but a monopoly is stupid, yet the road system has largely destroyed the railway companies which are not a monopoly.

[AnthonyMouse]

> Maintaining the road system on an inadequate budget is a lot harder than maintaining a fibre optic system, and yet municipalities do a passable job at that.

They do a pretty crappy job of it, in general. The relevant metric here would be congestion, i.e. are they maintaining adequate capacity to prevent people from being stuck in traffic?

There are a lot of arguments people will make for how they should be preventing traffic congestion (e.g. add lanes vs. facilitate more housing construction so people aren't driving as far), but on the question of whether they've succeeded in preventing traffic congestion, the answer is no.

They also spend rather a lot of money on it.

> That's a major point of my analogy -- having the road system being anything but a monopoly is stupid, yet the road system has largely destroyed the railway companies which are not a monopoly.

But the main reason for this is politics. Trucker unions see rail as competition so they lobby for laws that keep people using trucks. Rail has a significantly lower cost per ton but projects to build new rail lines etc. are opposed because they would compete with truck routes.