Provides a concise overview of the current debate on physical unknowables
Discusses how to generate a "truly" irreducibly random number
Considers the various counterarguments against claims of absolute physical randomness
Karl Svozil studied theoretical physics in Vienna and Heidelberg, and has been visiting many institutions world-wide; including the University of California at Berkeley and the Lomonosov University. He works at the Institute for Theoretical Physics of the Vienna University of Technology and holds an honorary position at the Department of Computer Science of The University of Auckland, reflecting his interest in physical aspects of theoretical computer science. He has been president of the International Quantum Structure Association, and has served on various scientific committees, among them the FWO panel for Interdisciplinary research.