Could it, though? California estimates the cost of SF to LA at $126 billion (and >20 years of construction time!); at that rate you'd have to spend $1T just to get a single cross-coast track. It is not obvious to me that the US's lack of high speed rail can be solved by money.
Yeah but taxing 50% of all earnings below $100k could also do that. What money can be spent on is fine but I think we’ve got a good system where people can have reward for economic output and they can use that to allocate money where they want. There are places with central planning and I don’t like them.
Personally, I’d rather the money be spent on datacenters. And as it goes, the guys with the money also would prefer that.
To do the latter things as a substitute would require appropriation of other people's money to spend on highly captured industries. I'd rather that not happen.