Gregor Betz explores the following questions: Where are the limits of economics, in particular the limits of economic foreknowledge? Are macroeconomic forecasts credible predictions or mere prophecies and what would this imply for the way economic policy decisions are taken? Is rational economic decision making possible without forecasting at all?

Wittgensteina (TM)s concept of a a oelanguage gamea brings out how knowledge and ability are interwoven. Human actions are distinguished by their entanglement in a language game a ' they derive their horizon of meaning through the interplay of linguistic and non-linguistic activities. The present volume is dedicated to the work of Hans Julius Schneider emphasizing the interaction between knowledge and know-how in various areas. In addition to examining the roots of the concept of a language game, the author investigates mental and religious language games.