Kristof Koch. Photo illustration by Mark Riechers/Midjourney (TTBOOK)
Neuroscientist Christof Koch has pioneered the scientific investigation of consciousness. He’s also had a lifelong fascination with the big existential questions about meaning and purpose. Recently, he had a mind-blowing experience — both terrifying and ecstatic — with 5-MeO-DMT, also known as toad venom.