Electric Cool Aide Acid Test Was Visionary many decades before it came to pass.

Ken Kesey, who died in 2001, had just written the novel “One Flew Over the Cuckoo’s Nest” when he purchased the former school bus that a large Bay Area family had tricked out with beds, benches and a refrigerator for road trips. Mr. Kesey and his free-thinking friends, called the Merry Pranksters, painted the bus in psychedelic colors, cut a sun roof into it, added a powerful sound system and installed a balcony on top.