Andy Smith wrote: > Someone famous once said, "the only intuitive interface is the > nipple".
For humans, at least, this turns out to be incorrect as well. Our babies are born with a rooting instinct: if you tickle their lower lip with something soft, they will open their mouth and try to latch on. But human mothers have no instinct or intuition for this; presenting the nipple is a learned behavior -- and getting it wrong hurts, discouraging experimentation. Humans need to teach each other everything. -dsr-