In 2006, the psychologists Jordan Litman and Paul Silvia itemized two main “flavors” of curiosity, which they dubbed I-curiosity and D-curiosity. The I in I-curiosity stands for interest, the pleasurable aspects of the hunger for knowledge, while the D in D-curiosity stands for deprivation, the idea that if we have a gap in information, we go into a restless, unpleasant, need-to-know state.
