David Langford Professions : Author Born : April 10, 1953 Browse All Authors Famous Quotes by David Langford Any sufficiently advanced technology is indistinguishable from a completely ad hoc plot device. David Langford mercenary plot technology Similar Authors F. E. Marsh author Iimani David author Beatrice Faust author Isabella Macdonald Alden author Isabella Beeton author Alan AtKisson author All Authors