" the Altered States Economy totals out to roughly $4 trillion a year. That’s a sizable chunk of our income that we annually tithe to the Church of the Ecstatic. We spend more on this than we do on maternity care, humanitarian aid, and K–12 education combined.” It’s larger than the gross national product of Britain, India, or Russia. And to really put this in perspective, it’s twice as many dollars as there are known galaxies in the entire "

― Steven Kotler , Stealing Fire: How Silicon Valley, the Navy SEALs, and Maverick Scientists Are Revolutionizing the Way We Live and Work