[This is one of those posts that is not about the virus crisis, although it wouldn’t be at all difficult to talk about pandemic response preparation as infrastructure]
Eli Lehrer writes,

There is no evidence that America’s infrastructure is crumbling or that it is not globally competitive. Indeed, judged by its performance, our existing infrastructure works well. Rather than building more of what it already has, therefore, America should direct its new investments toward visionary projects on the scale of the transcontinental railroad, the interstate-highway system, and the internet, all of which have helped the nation achieve its status as world leader.

. . .a few examples of the types of projects that could be considered. Three in particular fit the bill: building infrastructure for automated, electric cars; transforming the power grid to make clean energy very cheap; and colonizing outer space and exploiting its resources.

I only partly agree. I do think that it would be easier to switch to autonomous vehicles if you could build the road system from scratch. Ideally, you would want to keep legacy drivers off of those roads. But how do you get from here to there? Autonomous car lanes on existing roads?

What concerns me most about the power grid is robustness. What you want is to be able to keep power going to an area even if the nearest transformer fails.

I don’t see colonizing out space as an infastructure issue. Sorry.