They've been making a lot of public statements about how the simulation works and their plans over the course of development (For example: [1]). Most of it nitty-gritty stuff has been in industry conferences and publications, but there is a fair amount of information out there. Probably not enough to absolutely pin down their mistakes, but there is some information.

[1] http://www.gamasutra.com/view/news/164870/gdc_2012_breaking_...