There is a limited amount of total information that any government can usefully handle ... when faced with information overload, a government "manages" more information by generalizing, stereotyping, pigeonholing and otherwise destroying detail.

Which makes the Federal role two-fold: specific regulation of those specific things that absolutely must be handled at the Federal level, and establishing general frameworks within which lower level decision makers ... individuals, cooperatives, municipalities, etc. ... can make the detailed decision for themselves.

As A Siegel often says, the focus of the latter is on making the right decision the easy decision.

I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.