create a benchmark for overhead of exec via josh; compare to doing the same in bash.  results: pretty good.  twice as slow.  but "twice as slow" here still means overheads are millisecond-scale.

literally:

time looped touching in josh: 0.246sec (0.002sec each)
time looped touching in bash: 0.135sec (0.001sec each)

this also includes some comments on opts for IO because in running this in eclipse i nearly lost my mind.  eclipse's console is... you know what, i'm not even sure where the surreal begins and ends.