The biological version of this scenario might be a conviction that current global practices previous mirror conditions in human history that led to the emergence of new diseases or their epidemic spread: a warming climate, the rapid and large scale movement of populations, novel mechanisms of transportation that permit rapid communication of peoples, and destruction of existing barriers between native forests, agricultural land, urban concentrations, and compromised water and sanitation systems (19) . Convinced of this scenario, one might seek to impel regulatory settlements intended to reduce population flows into cities, reduce the destruction of forests by agricultural incur-sion, curtail global warming, etc., actions that could only take place by directly interdicting the economic forces creating them.