lost in the underflow

lost in the underflow adj.  Too small to be worth
   considering; more specifically, small beyond the limits of accuracy
   or measurement.  This is a reference to `floating underflow', a
   condition that can occur when a floating-point arithmetic processor
   tries to handle quantities smaller than its limit of magnitude.  It
   is also a pun on `undertow' (a kind of fast, cold current that
   sometimes runs just offshore and can be dangerous to swimmers).
   "Well, sure, photon pressure from the stadium lights alters the
   path of a thrown baseball, but that effect gets lost in the
   underflow."  Compare {epsilon}, {epsilon squared}; see also
   {overflow bit}.