Nearly all of the cell phone/broadband network came up in the last generation. A lot of highway projects have completed. Many cities have had substantial light

Nearly all of the cell phone/broadband network came up in the last generation. A lot of highway projects have completed. Many cities have had substantial light rail projects and extensions. We've done very well with certain kinds of infrastructure, it's just a question of whether we allocated the effort to the right stuff. The main issue we have in our built environment comes down to massively prioritizing automobile tech and privatized sprawl development at every turn, when we've known for some time that it's a money pit and doesn't produce the equitable outcomes promised. That's only shifted recently with changes in demographics(Boomers, the biggest block of homeowners, fading, immigration from places with different standards), and new direction from the higher levels of government(e.g. Biden admin infrastructure packages and policy-setting, or California's move to address housing by pressuring cities to build denser). There's a definite correlation going on between "housing cost increase" and "infrastructure cost increase", which I believe has the causation mostly on the end of housing, and the trend towards financialization that set in at the end of the 70's and consolidated the homeowner demographic into voting towards asset inflation. The 2nd Ave subway was expensive because New York's land is expensive, not because the tunnel itself was a uniquely nefarious technical problem. But New York's land is expensive in a speculative sense: the structure of the tax policy and valuation is such that a rational move is to leave a building vacant and try to sell it for more, rather than set rent at a lower price and record a valuation in line with what tenants can afford.