A dictionary of Marshall McLuhan’s quotations

Now in the electric age, at the speed of light, we need to process these things through the right hemisphere, that is, holistically, using formal cause. And in formal cause the effects appear before the causes. It is crucial that we use this approach. We need to know in advance what the effects on the users will be before we build the particular medium.
Religion and Youth: Second Conversation with Pierre Babin, 1977, in The Medium and the Light, p 101
Year: 1977
Compiled by William Kuhns
© 2026, The Estate of Marshall McLuhan