Depends what you mean by mentally superior. Computers can add billions of numbers a second, work at a very high precision with reflexes measured in nanoseconds,

Depends what you mean by mentally superior. Computers can add billions of numbers a second, work at a very high precision with reflexes measured in nanoseconds, do not have weaknesses like boredom and the need to socialize. If you're talking about creativity and navigating the real world, however, computers aren't there yet.