 For virtually his entire publication history, Mister Fantastic has been depicted as one of the most intelligent characters in the Marvel Universe.A visionary theoretician and an inspired machine smith, he has made breakthroughs in such varied fields as space travel, time travel, extra-dimensional travel, biochemistry, robotics, computers, synthetic polymers, communications, mutations, transportation, holography, energy generation, and spectral analysis, among others.However, he is never afraid to admit when others have greater expertise in certain fields than him, such as recognizing that Doctor Octopus possesses greater knowledge of radiation, that Hank Pym is a superior biochemist, or that Spider-Man can think of a problem from a biology perspective where he would be unable to do so, since his expertise is in physics.