It seems like there are a lot of commenters claiming to be able to do the same thing who didn't read the abstract: "...various indirect mechanisms possibly med

It seems like there are a lot of commenters claiming to be able to do the same thing who didn't read the abstract: "...various indirect mechanisms possibly mediating this phenomenon were tested: accommodation, brightness, increases in arousal by increased mental effort. None of these behavioral tests could support an indirect strategy as the mode of action"