Miles to go before I sleep ...
  1. Stein's Paradox show
    A surprising unintuitive result in statistics. See also the James-Stein estimator. See also Stein's Paradox.
  2. Jevons Paradox show
    A paradox from economic in which technological progress increases the efficiency with which a resource is used (reducing the amount necessary for any one use), but the falling cost of use induces increases in demand enough that resource use is increased, rather than reduced.