Maria: Thomas Edison was one of the most productive inventors of his time, perhaps of all time  His contributions significantly shaped the development of modern lighting and communication systems  Yet he had only a few months of formal schooling  Ttherefore, you do not need a formal education to make crucial contributions to technological advancement  Frank: That is definitely not true anymore
Since Edison' s day there have been many new developments in technology; to make crucial contributions today you need much more extensive technical knowledge than was needed then
fails to criticize or question any of Maria's statements about Edison