This episode explores the life of John C. Lilly, a neurophysiologist who invented the modern sensory deprivation tank and pioneered research into dolphin communication using LSD. The hosts discuss his controversial experiments on St. Thomas, his belief in an external cosmic consciousness called ECHO, and his heavy ketamine use. They also examine the cultural legacy of his work, noting its influence on popular media like *Stranger Things* and the film *Altered States*, while critiquing the ethical boundaries of his later animal research.
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