Is There Evidence That Consciousness Exists?

The book takes the reader through my own thought processes over the last 15 years or so, and why i've become open to some of the stranger theories that are out there. The most primary intuitions we have about consciousness live in these two questions that i like to keep asking myself. Is there any behavior on the outside, or anything we can witness on the outside of a system that can tell us conclusively that consciousness is present in that system? And my first answer is always yes.