# Information, complexity, brains and reality (Kolmogorov Manifesto)

## TL;DR

This paper explores the role of Kolmogorov complexity in understanding information, cognition, and the nature of reality, proposing that the universe is a mental construct based on sensory coherence.

## Contribution

It introduces a perspective linking algorithmic complexity to cognition and the universe, emphasizing the interpretative and model-based nature of reality.

## Key findings

- Cognition involves finding near-optimal algorithms approaching Kolmogorov complexity.
- The universe is viewed as an interpreted abstraction and mental construct.
- Information theory provides insights into the relationship between physics, neuroscience, and reality.

## Abstract

I discuss several aspects of information theory and its relationship to physics and neuroscience. The unifying thread of this somewhat chaotic essay is the concept of Kolmogorov or algorithmic complexity (Kolmogorov Complexity, for short). I argue that it is natural to interpret cognition as the art of finding algorithms that apprach the Solomonoff-Kolmogorov-Chaitin (algorithmic) Complexity limit with appropriate tradeoffs. In addition, I claim that what we call the universe is an interpreted abstraction--a mental construct--based on the observed coherence between multiple sensory input streams and our own interactions. Hence, the notion of Universe is itself a model.