one takes increasing chances as danger apparently recedes by virtue of knowledge. how to approach a snake or alligator; how to ward off deerflies and no-see-ums. an approach is always a detour (thus the sides, top and bottom, are in evidence); the domain, no matter how problematic, is both skein-connected (to its environs, history, etc., without and with observation, to taxonomic schema, ideologies, cultures and civilizations, and so forth) - and disconnected (to the extent that it is not 'its' intention that one approaches, that one makes the approach, that it is within one's horizon - but who knows). a detour may follow one or another walk-around, or it maybe be a confluence/manifold of the totality of walk-arounds - for example, the semi-totalities of gathering periphyton data in space time through selected sites, extrapolated across the glades in their entirety.