Why do we speak of cities as laboratories?
Great read by Andrew R. Schrock: https://medium.com/@aschrock/why-do-we-talk-about-cities-as-laboratories-c3d70ff7244f
I was surprised, however, that he didn’t reference Justice Brandeis, who famously described states as “laboratories of democracy.” https://en.wikipedia.org/wiki/Laboratories_of_democracy
