if  the  argument   is to  succeed.  Suppose  a point
　　   moving  along  a line a-c such  that at time  (t) the
　　   point is at b:
　　　　　　 a　　　　　　 b　　　　　　 c
　　　　　　 ?????????????????　　　　　　　　　　　　　　　　　　　　　　　　 I
　　　　　　　　　　　　 (t)
　　   We may then ask, Where  does this motion  take place?
　　   Now clearly present motion is not taking place in the
　　   segment  already  traversed,  a-b.  Equally  clearly,
　　   however, present  motion  is not taking  place in the
　　   segment not yet traversed, b-c. Thus the going is not
　　   occurring   in   either   the   gone-to   or  in  the
　　   not-yet-gone-to.  But for any (t), the length  of the
　　   line  is exhausted  by (a-b) + (b-c).  That is, apart
　　   from the gone-to and the not-yet-gone-to, there is no
　　   place  where  present-being-gone-to occurs. Therefore
　　   nowhere is present motion taking place.
　　　　  Our interpretation is confirmed by Candrakiirti's
　　   comments in the Prasannapadaa:

　　   [The opponent  claims:] The place which is covered by
　　   the　　 foot　　 should　　 be　　 the　　 location　　 of
　　   present-being-gone-to. This is not the case, however,
　　   since the feet are of the nature  of an aggregate  of
　　   infinitesimal atoms (paramaa.nu). The place before the
　　   infinitesimal atom at the tip of the toe is the locus
　　   of the gone-to.  And the place beyond the atom at the
　　   end of the heel is the locus  of the not-yet-gone-to.
　　   And apart  from this infinitesimal  atom there  is no
　　   foot.(12)

　　　　　　　　　　　　  p.290

　　   There are two problems  involved  in making  sense of
　　   this passage.  The first  is that we must assume  the
　　   goer to be going backwards! This is easily  remedied.
　　   however, by the convenient  device of scribal  error.
　　   Thus  if we assume  that  an  -a-  has  been  dropped
　　   between  tasya  and  gate  at lines  21-22, and  then
　　   inserted  between  tasya and gate of line 22,(13) our
　　   goer will be moving  forward  once again.  The second
　　   problem stems from the fact that for the argument  to
　　   succeed  we must assume  that a foot consisting  of a