Let’s take a very sophisticated item: one web page. A web page relies on perhaps a hundred thousand other inventions, all needed for its birth and continued existence. There is no web page anywhere without the inventions of HTML code, without computer programming, without LEDs or cathode ray tubes, without solid state computer chips, without telephone lines, without long-distance signal repeaters, without electrical generators, without high-speed turbines, without stainless steel, iron smelters, and control of fire. None of these concrete inventions would exist without the elemental inventions of writing, of an alphabet, of hypertext links, of indexes, catalogs, archives, libraries and the scientific method itself. To recapitulate a web page you have to recreate all these other functions. You might as well remake modern society.