In their view civilization and mechanization were almost identical, and never before had there been such a triumph of mechanization. The benefits of a scientific civilization were obvious. For the fortunate class there was more comfort, better health, increased stature, a prolongation of youth, and a system of technical knowledge so vast and intricate that no man could know more than its outline or some tiny corner of its detail. Moreover, increased communications had brought all the peoples into contact. Local idiosyncrasies were fading out before the radio, the cinema, and the gramophone. In comparison with these hopeful signs it was easily overlooked that the human constitution, though strengthened by improved conditions, was intrinsically less stable than formerly. Certain disintegrative diseases were slowly but surely increasing. In particular, diseases of the nervous system were becoming more common and more pernicious. Cynics used to say that the mental hospitals would soon outnumber even the churches. But the cynics were only jesters. It was almost universally agreed that, in spite of wars and economic troubles and social upheavals, all was now well, and the future would be better.