A summary of recent experimental results shows that entanglement can be generated more easily than before, and that there are improved chances for its persistence. An eminent finding of Generalised Quantum Theory is the insight that the notion of entanglement can be extended, such that, e.g., psychological or psychophysical problem areas can be included, too. First, a general condition for entanglement to occur is given by the term ‘common prearranged context’. A formalised treatment requires a quantitative definition of the similarity (...) or dissimilarity between two complex structures which takes their internal structures into account. After some specific remarks on distance, metrics, and semi-metrics in mathematics, a procedure is described for setting up a similarity function with the required properties. This procedure is in analogy with the two-step character of measurement and with the well-known properties of perspective notions. A general methodology can be derived for handling perspective notions. Finally, these concepts supply heuristic clues towards a formalised treatment of the notions of ‘meaning’ and ‘interpretation’. (shrink)

In spite of incomplete knowledge we are permanently forced to act in complex real-life situations. First, a modern concept of information, the non-trivial transition from information to knowledge, patterns of missing knowledge, and the concept of perspective notions are studied. The main sections review some guidelines for action under incomplete information. A modern view of the concepts of holism and wholeness reveals that (in contrast to some critics) general system theory does not require any metaphysical assumption or previously accepted worldview. (...) The concepts of holism and wholeness, as well as general system theory, are well-founded, even under strict criteria. (shrink)

Pragmatic information,understood as the impact of a message upon a receiving system,represents a matured and comprehensive concept of which earlier proposals are special cases.The di .erent kinds of recipients and reactions to incoming message are characterized.In a historical exposition the principal approaches to the definition and operationalization of information are critically reviewed. From a modern point of view,the measurement of pragmatic information is possible but requires novel and specific procedures.As a perspective notion,pragmatic information will be analyzed in its relationships with (...) other perspective notions,particularly 'meaning' and 'interpretation '.Main fields of application include physics, general systems theory and cognitive science.Together with some reflections on information and meaning, these areas of application point forward to connections with the mind-matter problem. (shrink)