implies a complete absence of connection between the separate topics the phrase ostensibly connects. Larry Gonick used this phrase to conclude his Cartoon Guide to (Non)Communication, instead of the traditional "the end". Postman refers to the inability to act upon much of the so-called information from televised sources as the information-action ratio. He contends that "television is altering the meaning of 'being informed' by creating a species of information that might properly be called disinformation—misplaced, irrelevant, fragmented or superficial information that creates the illusion of knowing something but which in fact leads one away from knowing". Drawing on the ideas of media scholar Marshall McLuhan – altering McLuhan's aphorism "the medium is the message" to "the medium is the metaphor" – he describes how oral, literate, and televisual cultures radically differ in the processing and prioritization of information; he argues that each medium is appropriate for a different kind of knowledge. The faculties requisite for rational inquiry are simply weakened by televised viewing. Accordingly, reading, a prime example cited by Postman, exacts intense intellectual involvement, at once interactive and dialectical; whereas television only requires passive involvement. Postman argues that commercial television has become derivative of advertising. Moreover, modern television commercials are not "a series of testable, logically ordered assertions" rationalizing consumer decisions, but "is a drama—a mythology, if you will—of handsome people" being driven to "near ecstasy by their good fortune" of possessing advertised goods or services. "The truth or falsity of an advertiser's claim is simply not an issue" because more often than not "no claims are made, except those the viewer projects onto or infers from the drama." Because commercial television is programmed according to ratings, its content is determined by commercial feasibility, not critical acumen. Television in its present state, he says, does not satisfy the conditions for honest intellectual involvement and rational argument. He repeatedly states that the eighteenth century, the "Age of Reason", was the pinnacle for rational argument. Only in the printed word, he states, could complicated truths be rationally conveyed. Postman gives a striking example: many of the first fifteen U.S. presidents could probably have walked down the street without being recognized by the average citizen, yet all these men would have been quickly known by their written words. However, the reverse is true today. The names of presidents or even famous preachers, lawyers, and scientists call up visual images, typically television images,