No one understood causality, whether Aristotelian or electric, like Marshall McLuhan. Now, in Media and Formal Cause, no one reveals understanding of formal cause in the digital environment better than McLuhan's protege son, Eric. In the foreword, Lance Strate writes that M. McLuhan's Understanding Media was one of the most important books of the 20th century. For anyone who wishes to understand how things truly work, Media and Formal Cause is one of the most important books of the 21st. Arguably formal cause has been the least understood but the...