Acceleration

The message of any medium (which is to say, the societal effect of any technology) is the way they "amplify or accelerate existing processes."

Whereas mechanical media accelerated slowly, electric media involve an extreme form of acceleration, eliminating time and space factors entirely. In other words, electric media speed up sequence to such a degree that it is no longer sequence but simultaneous. This results in a reversal of explosion into implosion. The reason electric media are the extreme is because "no further acceleration is possible this side of the light barrier".

Examples

 * "The railway…accelerated and enlarged the scale of previous human functions, creating totally new kinds of cities and new kinds of work and leisure."
 * "The airplane…, by accelerating the rate of transportation, tends to dissolve the railway form of city, politics, and association"