In a previous post, I described as "over excited" the idea that the mysterious "dark matter", that hypothetical form of matter that does not interact with light, and which is invoked to explain anomalous astronomical observations, may be, in some sense, "raw" information, unattached to conventional matter. Remarkably enough, a new theoretical approach initiated by the theoretical physicist… Continue reading Dark matter and information revisited
Tag: information theory
Why everything is complex
A recent article in Quanta magazine reminds us of the on-going interest in a rather startling proposal regarding the status of information, its relation to complexity, in the physical and biological realms. This proposes that complexity increases over time, inexorably and inevitably, in the physical universe as well as in living systems. It was, and… Continue reading Why everything is complex
Entropy. How little we (still) know,
Entropy, and its complex and subtle relations with information, has been an interest of mine for a long while, a paper on the subject being updated by posts on this blog. Since the last blog post, a number of interesting ideas have been put forward. The first is not really new, having been made available… Continue reading Entropy. How little we (still) know,
The weight of information
The status of the concept of information in the physical world, and in particular its relation to entropy, continues to attract discussion and controversy. A relation between information and physical entropy, and hence energy, was first shown by Leo Szilard, while Rolf Landauer and Charles Bennett later showed that erasing information has an inescapable energy… Continue reading The weight of information
