[AnthonyMouse]

How do you explain Comcast?

[walthamstow]

It's difficult because I've never had Comcast (I pay my £10/month BBC fee that hasn't gone up in years with pleasure) but I'd probably start by saying that Comcast is not a scarce good.

[AnthonyMouse]

If it wasn't scarce then it would be cheaper. The problem is that it is scarce, artificially, as a result of regulatory capture etc.

Which is the same reason housing in places like SF is so expensive. Artificial scarcity as a result of zoning rules that make construction prohibitively expensive or otherwise inhibit it from increasing the housing supply.

Houston metro has more people than SF metro, so why does housing cost more in SF? Because there is less of it.

[walthamstow]

To bring us back onto the topic, Manhattan is a scarce resource, and there's nothing artificial about that fact.

[fragmede]

There's plenty more space in the up and down direction. Bridges and tunnels could be used to add car or other vehicle capacity.

[walthamstow]

This thread is about transportation, not office or resi space.

Edit - I see you've changed your message. How does a bridge over water add road capacity to a peninsula?

[fragmede]

It doesn't. There may be a other materials that bridges can go over, however.