Physics of Autonomous Biological Information
Howard H. Pattee
Howard H. Pattee
Quote:The general concept of information does not belong in the category of universal and inexorable physical laws but in the category of initial conditions and boundary conditions. Boundary conditions formed by local structures are often called constraints. Informational structures such as symbol vehicles area special type of constraint. It should be clear that the concepts of initial conditions and constraints in physics make no sense outside the context of the law-based physical dynamics to which they apply. This is also the case for the concept of information.
There are many different origins, functions, and hierarchical levels of informational constraints. Physicists require the type of information that begins by an observer choosing to perform a measurement. This passive information is necessary to establish the initial conditions of a chosen dynamical system at a particular time. The behavior of the system can then be derived by integration over time. Initial conditions include the positions of all the microscopic units (configuration), their masses, and rates of change of position (momenta). Constraints are macroscopic structures that require additional information for their description.
Biological information begins not by observer’s choice but by chance. Chance produces variation in the structures of potential informational constraints. Only by self-replication and natural selection do these constraints become functional information that controls the dynamics of chemical syntheses of the organism. This distinction between physical and biological information is essential because it is the undirected origin of biological information that is one of several necessary conditions for open-ended evolution.
'Historically, we may regard materialism as a system of dogma set up to combat orthodox dogma...Accordingly we find that, as ancient orthodoxies disintegrate, materialism more and more gives way to scepticism.'
- Bertrand Russell
(This post was last modified: 2019-02-20, 05:45 AM by Sciborg_S_Patel.)
- Bertrand Russell