Unfortunately, nowadays, even books bought directly from Springer are print-on-demand (PoD). This isn't so bad for paperbacks, but the hardcovers tend to be glued and have very stiff spines which make the books difficult to keep open (though this has improved of late).
Compare with the older Springer-produced PoD hardcovers that were Smyth-sewn and of very high quality.
I don't know about long COVID, but there is definitely an issue with new forms of methamphetamine (specifically, P2P meth) inducing aggression and mental instability in otherwise stable people. Among other sources, The Atlantic published an article about it: https://www.theatlantic.com/magazine/archive/2021/11/the-new...
Instead of choosing between density or single-family homes, why not have both? (i.e. single family homes that are built in a dense style). All you have to do is look beyond the borders of North America for working examples.
The Tokyo suburb of Seijo mostly consists of single-family homes but is also dense. The homes aren't massive, but based on the Time article, residents are okay with smaller homes as long as they are detached. This blog post explains how it's done: https://newworldeconomics.com/how-to-make-a-pile-of-dough-wi... (it's a long blog post . . . you can skip to the line "I chose Seijo because:" and start reading from there)
Some notes about Seijo (summarized from the blog post):
- It is mostly SFDR (single-family detached residential), usually with parking for one to three cars per house, not dense apartment buildings without parking.
- Has a population density exceeding that of Brooklyn
I don't see why such a development style couldn't be implemented in a North American context.
Compare with the older Springer-produced PoD hardcovers that were Smyth-sewn and of very high quality.