Simulation arguments here ... http://www.math.columbia.edu/~woit/wordpress/?p=586 (see also the post by Greg Egan, at the end) http://www.overcomingbias.com/2007/08/pseudo-criticis.html http://scottaaronson.com/blog/?p=265 (Greg Egan again, in comments, at #33, #37, #60) http://www.philosophyetc.net/2007/08/scientism.html