Media and cultural change 89 The ideas of Park seem to have appealed more to the mind of Harold Innis than to any other student of Robert Park. Anybody can hear the Innis note in such observations by Park as the following: “Technological devices have naturally changed men’s habits and in doing so, they have necessarily modified the structure and functions of society.” (p. 308) Again: “From this point of view it seems that every technical device, from the wheelbarrow to the aeroplane, in so far as it provided a new and more effective means of locomotion, has, or should have, marked an epoch in society. This is so far true as most other important changes in the means of transportation and communication. It is said likewise that every civilization carries in itself the seeds of its own destruction. Such seeds are likely to be the technical devices that introduce a new social order and usher out an old.” (Society, pp. 309–10) In the same year as his “Physics and Society” article, Park published “News as a Form of Knowledge”: “I have indicated the role which news plays in the world of politics in so far as it provides the basis for the discussions in which public opinion is formed. The news plays quite as important a role in the world of economic relations, since the price of commodities, including money and securities, as registered in the world market and in every local market dependent upon it, is based on the news.” (p. 86) These ideas were not lost on Harold Innis. Indeed, Innis developed them much further than Park did, and should be considered as the most eminent of the Chicago group headed by Robert Park.