It states that there is more to a person than just a collection of memories. A person is also defined by his desires, motivations and beliefs. There is clearly a distinction between someone who enjoys fighting with others. Simply put, for identical people to be identical, they must share memories, as well as their personalities and beliefs. In addition to that, identical people must share a quasi-desire, which is a desire not tied to personal identity to escape redundancy. The desire to be accepted without being circular cannot presuppose an identity. A quasi-desire, similar to a quasi-memory, is an apparent desire caused by a real desire. For example, a certain person has an aggressive and ruthless attitude, which leads to certain desires. Apparent desires are indirectly linked to the motivations and deepest beliefs of the person in question. The insufficiency objection ultimately leads to the creation of a new theory, the theory of psychological continuity, according to which identical people are identical if they almost remember and almost directly desire the same thing, they can be considered psychologically