And Lamech took unto him two wives: the name of the one was Adah, and the name of the other Zillah. And Adah bare Jabal: he was the father of such as dwell in tents, and of such as have cattle. And his brother’s name was Jubal: he was the father of all such as handle the harp and organ. And Zillah, she also bare Tubal-cain, an instructor of every artificer in brass and iron: and the sister of Tubal-cain was Naamah. —Genesis 4:19–22 Those students who are now developin

Philosophy today. Lafferty pretty clearly distrusted attempts to draw a hard line between science and everything else. In the philosophy of science, the question of where and how to draw that line is called the demarcation problem. Today’s story gives it a suitably shaggy form: the line between sheep and goats, kids and lambs. People want such a line for all kinds of reasons. A major one is rhetorical. Scientists themselves may go on quite merrily doing their disciplinary wor