In economics they teach that is a free market there is little innovation because the only profit you can make is in the time it takes for others to catch up.
Keynsian?
Or some other flavor of Socialism/Communism? Certainly they have a good point - just look at how few innovations the American economy has developed in 200 years - interchangable parts, assembly line, metallic firearm cartridges, first practical revolver, lever-action rifle, first practical semi-auto battle rifle, electric power, telegraph, telephone, steam ship, ironclad warship with transversable gun turret, airplane, pneumatic brakes, automatic transmission, motion picture, sound recording, first practical computer, personal computers, vaccume tube, transistor, electric guitar, moon rocket, space shuttle, first attempted attack by submarine, first successful attack by submarine, first practical submarine, first nuclear submarine, cotton gin, stealth aircraft, machine gun, fission bomb, fusion bomb, nuclear power, synthetic fibers, plastics, any number of agricultural devices, jeans, 8 track tape, helicopter, tilt-wing, the internet, frozen foods, microwave oven, engine supercharger, hydroplane, elevator, polio vaccine....
Lucky for us, we have "worker's paradises" like Cuba, North Korea, and the former Soviet Union to invent all the things our flawed capitalist economy is incapable of developing for us....