The reductio ad absurdum of M.D.’s view, I argued, was that science devises ever bloodier means of war until humanity’s powers of destruction overcome our powers of creation and our civilisation drives itself to extinction. M.D. embraced my objection with mordant glee. ‘Precisely. Our will to power, our science, and those v. faculties that elevated us from apes, to savages, to modern man, are the same faculties that’ll snuff out Homo sapiens before this century is out!