The real treachery, and the thing we cannot tolerate, is any attempt to make their profit in a way that threatens the reliability of our shortcuts. The blitz of modern daily life demands that we have faithful shortcuts, sound rules of thumb to handle it all. These are not luxuries any longer; they are out-and-out necessities that figure to become increasingly vital as the pulse of daily life quickens. That is why we should want to retaliate whenever we see someone betraying one of our rules of thumb for profit.
