A former student of mine pointed me at this (from Wikipedia):
*Goodhart's law* is named after the banker who originated it, Charles
Goodhart <http://en.wikipedia.org/wiki/Charles_Goodhart>. Its most
popular formulation is: "When a measure becomes a target, it ceases to
be a good measure."
While Goodhart was talking about banking regulations, it made me think
of the FCI. Whatever it measures, maybe it only works if I ignore
it...just thinking out loud.