htw's graphs[1] are a little weird: Frutiger, for example, has an average reading distance that is higher than the "minimum distance" ("minimum legible distance

htw's graphs[1] are a little weird: Frutiger, for example, has an average reading distance that is higher than the "minimum distance" ("minimum legible distance from the sign" makes no sense, but "furthest distance at which sign is legible," which I assume is what is meant, isn't really conveyed by minimalwert). How can the minimum (or, actually,the maximum) legible distance be smaller than the average? [1] http://cdn.ilovetypography.com/img/2012/04/empirical-font-wayfinding.png http://cdn.ilovetypography.com/img/2012/04/empirical-font-wa...