Peter Drucker writing on “The Technological Revolution” of our 
time in Technology and Culture  (vol. II, no. 4, 1961, p. 348) 
states: “There is only one thing we do not know about the 
Technological Revolution—but it is essential: What happened to 
bring about the basic change in attitudes, beliefs, and values 
which released it? ‘Scientific progress’, I have tried to show, had 
little to do with it. But how responsible was the great change in 
world outlook which, a century earlier, had brought about the 
great Scientific Revolution?” The Gutenberg Galaxy  at least 
attempts to supply the “one thing we do not know.” But even 
so, there may well prove to be some other things!

     The method employed throughout this study is directly 
related to what Claude Bernard presented in his classic 
introduction to The Study of Experimental Medicine.  
Observation, Bernard explains (pp. 8­9), consists in noting