Earlier quoted context omitted.
Yes, a while back I was interested "where does billions we spend on national defense actually go" and I came to the conclusion that the DoD is really just a giant jobs program. Ultimately I think the reason we don't have things like flying cars is that the private sector gets stuck in local maxima (such as getting people to click ads) and in the public sector it's very hard to have focused time-blocked short term goa…
I keep seeing people say this. Maybe flying cars just don’t make sense? Wheels work really well when your engine dies. Have you seen people drive in 2d space? You want to add a z axis? What’s the efficiency of a small plane? Surely not better than a Prius. Edit: I looked it up and a Cessna gets ~15 mpg.
I think it's just a placeholder metaphor to represent