Replicating chemical systems will tend to be transformed from (dynamically) kinetically less stable to (dynamically) kinetically more stable. That selection rule is in some sense an analogue of the Second Law, the selection rule in the regular chemical world. In both worlds chemical systems tend to become transformed into more stable ones, but as the two worlds are each governed by a different kind of stability, the selection rule in each world is different—thermodynamic stability in the ‘regular’ chemical world, dynamic kinetic stability in the replicator world.
