[Retric]

English is tricky around negatives and groups.

“Wetness of all sidewalks globally can be explained by sprinklers.” <- obviously false.

“Wetness of sidewalks can never be explained by sprinklers.” <- also obviously false

The first applies to all sidewalks as a group, the second applies to subsets of the overall group so it’s false if any subset can be explained by sprinklers. Both quotes are using my first example due to being inclusive and including: “on a social level” and “population-level”