Carl Sagan's son, Dorion, smoked a bit too much pot during the writing of this silly little essay. That is not casting aspersions, he mentions it himself throughout the monograph. Oddly fun, despite its silliness, but I can't see myself recommending it to anyone (unless maybe they too are stoned). Dorion actually CAN write, as other works of his demonstrate. But here I think he was mostly just amusing himself. For fans of his either of his parents (Carl and biologist Lynn Margulis), there are a few amusing tidbits in here about their private lives.