In HBO's Westworld S2E9, Bernard says that in addition to The Cradle, which contains all the hosts' personalities, there is a digital repository called The Forge which contains all the guests' personalities. (A tech says that the operators of the park are "replicating their cognition".) Bernard implies that it could be disastrous if a host reaches The Forge. "Imagine what one host could do with that trove of information."
I'm having trouble imagining anything terrible. What is Bernard insinuating?