Humans can apparently commit to beliefs that are ultimately contradictory or incompatible. For instance, the one person, unless they're shown a reason to think otherwise, could believe that both quantum mechanics and relativity correspond to reality. What I wanted to ask is -- the ability to hold contradictory beliefs might sometimes be an advantage; for instance, both lines of inquiry could be pursued simultaneously. Is this an advantage that only organic brains have? Is there any good reason a computer couldn't be designed to hold, and act on, contradictory beliefs?