Testing Virtual Drugs On Virtual Humans

From my wife comes news that drug companies are using software to simulate biology, to cut down on expensive fail:

At first, I could hardly believed this worked, because the human body is so complex, but, apparently, they're able to use this technology to weed out "sure-fire losers." "...high speed processors and other technological advancements are enabling relatively small-scale simulations--of particular organs, for instance--to be integrated into increasingly complete software-based 'virtual humans'..." It's saving the companies millions and reducing human risk.

Really, it's a pity
they can't test drugs in Sim City.