These strengths, and our civilization in general, have reached an apogee with the end of the apocalyptic threats of the Cold War and the end - or at least waning - of less successful, and ultimately less "just," political and economic systems. At the turn of the 21st century we appear to be entering our greatest century, a golden age. The challenge that we face is similar to that of the Classic Maya civilization: we have set in motion a "runaway train" of success.