Viewers of “The Good Place,” the TV comedy series and ersatz philosophy seminar, learned in an early episode that the prophets of the world’s major religions have figured out only 5% of the mysteries of the cosmos. But (according to the show) one night in 1972, a visionary thinker offered an explanation that was an astonishing 92% right. The joke is that this all-seeing genius was a Canadian stoner kid named Doug Forcett, who solved the riddles of existence while stupendously high.