Chapter Eight – Theories of self So far we have divided theories of self crudely into two categories; ego theories which entail some kind of continuing entity, and bundle theories which do not. In their extreme versions neither deals adequately with split brains and multiple personality, nor with ordinary self-awareness. On the one hand, extreme ego theories entail mysterious untestable entities. On the other, simplistic bundle theories do not explain why we feel as though we are a continuing entity. In this chapter we consider some theories that try to avoid these shortcomings.