The idea of a system with shared consciousness but no distinct personalities raises complex questions about the nature of consciousness and identity. Consciousness itself is a topic of intense debate and research in the fields of neuroscience, psychology, and philosophy. Whether a system could exist without distinct personalities but shared consciousness would depend on how we define and understand consciousness in the context of dissociative disorders.
As research in the field progresses, our understanding of dissociative disorders and the experiences of individuals with OSDD and DID may become more refined. If you have specific questions about these conditions or any other mental health topics, it's important to consult with qualified mental health professionals who are up-to-date with the latest research and knowledge in the field.