An objective, dynamic and physically justified concept of information is elaborated starting from Shannon's concept of entropy and applied to information technology, artificial intelligence (consciousness) and thermodynamics. The justification of an information conservation theorem acquires practical significance in information technology, especially as it moves into the quantum realm (photonics/quantum computing). The essential dynamics of information and its objectivity are critically examined and form the foundation for understanding consciousness. Starting with artificial intelligence, pathways to artificial consciousness are explored.
Information is strongly related to entropy, always in motion, cannot disappear, and is independent of subjects.
We live in the information age, but the concept of information is still not defined objectively and physically. This book defines a dynamic concept of information that results in a conservation of information principle. The objectivity and transferability of information lead to the conclusion that the well-defined physical quantity of energy coincides with the concept of information.

Lienhard Pagel is professor emeritus of microsystems and device technology at the University of Rostock