Acoustic phonetics, which is developing and increasing in richness very rapidly, already enables us to solve many of the mysteries of sound, mysteries which motor phonetics could not even begin to solve.
Thus it is necessary to commence from an inescapable duality: the finite is not the infinite.
I was a fighter pilot, flying Hurricanes all round the Mediterranean. I flew in the Western Desert of Libya, in Greece, in Syria, in Iraq and in Egypt.