In "The Cyberiad" the paradigm taken from physics is treated in a rather humorous way. One can see this quite well in the short story "The Dragons of Probability" that makes use of the nomenclature of quantum mechanics. Dragons that are, dragons that aren't, virtual dragons - all of this are games from the rich apparatus of modern physics according to which there is no such thing as "nothing" (i.e. vacuum) - instead there are zillions of virtual particles. Theoretical physicists always liked this book. A certain Polish physicist translated "Dragons of Probability" to English in order to show it to his Western colleagues - all of this happened quite a long time ago, when only a few books of mine were published in the West.