"There is still a Flat Earth Society, so imagine the existence of a Bibipent Society, devoted to the notion that 2 + 2 = 5. Such a society might well have filed suit to stop the schools from teaching 2 + 2 = 4 as if it were a fact, and require them to present it as “only theory,” with 2 + 2 = 5 as an alternative possibility, deserving equal time. They would doubtless say that the purpose of a school is to educate, not to indoctrinate. (Does all this sound familiar? That’s the way it is with creationism and evolution.)"