I think you're talking past each other. From the article: "Because you pretty much always stir your reactions, even when all the components are in solution righ

I think you're talking past each other. From the article: "Because you pretty much always stir your reactions, even when all the components are in solution right from the start - right?" Dc is saying that people stir stuff because its not properly in solution yet, and then they just don't turn it off because there's no particular reason to. Maybe somebody who understands chemistry better than me can figure out how relevant the experimental procedures from the supplementary material are to this scenario, I can't really make good sense of them.