Thought-Density Hypertime and the Extended Brain

An external cognitive system can store information, recommend actions, or control a device without becoming part of a person's continuing cognitive process. This paper defines a stricter candidate architecture. An Extended Brain is a reciprocal, adaptive human-machine system in which inspectable human, artificial, and shared-workspace states repeatedly change one another during a task. The associated thought-density hypertime hypothesis proposes that such coupling could increase useful cognitive updates that a person accesses, uses, and later recovers per unit of physical time. It does not propose that world-clock time or biological lifespan changes. It belongs to the Self-Aware Networks neuroscience and consciousness research program. This is a corrected preprint edition released under the Creative Commons Attribution 4.0 license.