It occurred to me at recently that if you don't have a real need for
nanosecond-granularity file timestamps (and can make due with, say,
microsecond granularity), you can steal the 12 high-order bits out of
the 32-bit word containing the "microseconds" value, which would get
you to 2**44 seconds after 1/1/1970, which, assuming i did the math
correctly, gets us to well past the Y100K point.

					- Bill