This is interesting!

https://www.youtube.com/watch?v=1V-5t0ZPY7E

In his latest book, neuroscientist Dr. Christof Koch describes how he, during a psychedelic experience on 5-MeO-DMT, felt that he was one with the universe. Essentia Foundation’s Hans Busstra interviews Koch on his new book and Integrated Information Theory (IIT), the scientific theory of consciousness Christof Koch and Giulio Tononi are famous for. Can IIT account for what Koch experienced during his trip?
Christof Koch on his DMT trip
_{By Romanpoet – Own work, Public Domain,}