Sure, but these two points of data make a pretty nice line: [My assumption is that] people (at large) did not update on socially propagated facts. Now they do.

Sure, but these two points of data make a pretty nice line: [My assumption is that] people (at large) did not update on socially propagated facts. Now they do. Maybe tomorrow it'll be further improvement. (Or, maybe it's not that people are improving, but that the social transmission now exists and people haven't changed...?)