and the paths are seen as not so different; sts vs sto stops being so much a question of good vs bad and becomes more of an issue of efficient vs. inefficient, with sto analogous to riding the up escalator to the creator, while sts would be analogous to running up the down escalator, pushing and bumping your way through the people who are standing still. it takes longer, you make fewer friends along the way, and not as many people do it, but eventually you get to the same place.