Sunday, May 22, 2016

life without design?


aeon |  Biological replication and self‑reproduction are in fact such stupendously well‑orchestrated physical transformations that one must explain how they are possible under the simple, no‑design laws of physics such as ours. This additional explanation, which was not included in the theory of evolution, is essential for that theory to properly explain how living things arise without intentional design – to close the explanatory gap.

The conclusion that the laws of physics must be tailored to produce biological adaptations is amazingly erroneous

Now, it turns out that an explanation of this sort is peculiarly difficult to formulate using the prevailing methods of physics. The latter can predict only what a physical system will do (or will probably do) at a later time, given certain initial conditions and laws of motion. But applying laws of motion to particles is an intractably laborious way to express the appearance of design, replication, self‑reproduction and natural selection. Those processes are highly emergent, involving the collective motion of countless interacting particles.

There is more. Even if one could predict that – given certain dynamical laws and initial conditions – particles would aggregate so as to form a goat at a certain time, this would not at all explain whether a goat could have come about without design. The design of the goat, for all we know, could be encoded in the initial conditions or in the laws of motion. In general, one must explain whether and how a goat ispossible (ie, permitted) under no‑design laws of physics; not just predict that it will (or will probably) happen, given some version of the actual laws and initial conditions.

Thinking within the prevailing conception has led some physicists – including the 1963 Nobel Prize-winner Eugene Wigner and the late US-born quantum physicist David Bohm – to conclude that the laws of physics must be tailored to produce biological adaptations in general. This is amazingly erroneous. If it were true, physical theories would have to be patched up with ‘design-bearing’ additions, in the initial conditions or the laws of motion, or both, and the whole explanatory content of Darwinian evolution would be lost.

So, how can we explain physically how replication and self reproduction are possible, given laws that contain no hidden designs, if the prevailing conception’s tools are inadequate?

By applying a new fundamental theory of physics: constructor theory.