That is real easy to hear wrong, it gives fodder to anti-BB types for no good reason. First of all, inadequate computers may be a reason that accurate simulations are currently impossible, but it's not the reason for the headline-- it's not the reason that current computer simulations give inconsistent results. That can't be the computers' fault, it must be the fault of the human-designed simulations. So the real question is, what are the simplifying assumptions in place to make those simulations feasible, and what is wrong with those assumptions?