[Right Wing Professor]

Perhaps these may be explained in terms of algorithms (as may anything that is intelligible and intelligently designed), but in essence they are physical processes interpreted post facto as causative of all speciation.

It is a description of physical processes in terms of fundamental logical/mathematical rules. Thence, algorithm.

[Fester Chugabrew]

It is a description of physical processes . . .

Exactly. It is not the physical process itself.