This book is so rich with insights, sparkling dialogue, and wisdom that one would love to distribute it like a leaflet around town." Südwestrundfunk (German radio station) "The intellectual dance that the two dare to dance is intelligent, light, humorous, and enchanting." Süddeutsche Zeitung (German daily) "I recommend this book not only to the cybernetics and systems community, but to anyone." Ranulph Glanville, Cybernetics and Human Knowing "Easy and enjoyable to read, without loss of scientific and philosophical depth and rigor. … The reader will find the book difficult to put down." Bernd R. Hornung, Journal of Sociocybernetics Conversations for skeptics How real is reality? Are our images of the world mere inventions or do they correspond to an external reality? Is it possible to know the truth? These are some of the questions that are discussed in this book by physicist and philosopher Heinz von Foerster and media studies scholar Bernhard Poerksen. Together they explore the limit