DY: That’s interesting. How do you respond to killing a louse, then? Because microscopic eggs don’t count as being Pareh V’ravei? Some other Teretz?
I don’t know if I really have a Shittah in this Inyanim. I don’t think I have to. R’ Schachter and R’ Shlomo Zalman hold that Chazal relied on their sceintists, so I do get upset when people call that Shittah K’firah. But I don’t know if I subscribe to any particular one.