I think there is a world market for maybe five computers.
- Thomas J. Watson, 1943, Chairman of the Board of IBM

640K ought to be enough for anybody.
- Bill Gates, 1981

Computers in the future may weigh no more than 1.5 tons.
- Popular Mechanics, forecasting the relentless march of science, 1949

Theoretically, television may be feasible, but I consider it an impossibility--a development which we should waste little time dreaming about.
- Lee de Forest, 1926, inventor of the cathode ray tube

This 'telephone' has too many shortcomings to be seriously considered as a means of communication. The device is inherently of no value to us.
- Western Union internal memo, 1876

Who the hell wants to hear actors talk?
- H. M. Warner, Warner Brothers, 1927

Who the hell wants to hear actors talk?
- H. M. Warner, Warner Brothers, 1927

Swarzenneger?