1. An information processing apparatus comprising: a processor; said processor configured to calculate an experience importance degree of content for a user on the basis of a relationship among a reaction analysis result obtained by performing a predetermined analysis on a reaction of the user to the content at the time when the user experiences the content, the reaction being an attitude of the user, an environment analysis result obtained by performing a predetermined analysis on an external environment of the user at the time when the user experiences the content, a signal analysis result obtained by performing a predetermined analysis on a video signal or voice signal of the content, and a language analysis result obtained by performing a predetermined language analysis on language information described about the content; determine, if the experience importance degree of the content calculated by importance degree calculation means is high, determine the content as recommendation content to be recommended to the user; calculate a relationship degree indicating a degree of the relationship among the reaction analysis result, the environment analysis result, the signal analysis result, and the language analysis result; and sort pieces of content experienced by the user in accordance with corresponding experience importance degrees calculated.