The author prefers the present title, because the paper is concerned with the origin of the genetic machinery. Theories on the origin of life or on other aspects of early evolution, such as cellularization, serve merely as starting points.  In the introduction the term “or proteins” has been added after “RNA” ,  and the term “retrodict” has been defined.  The term “interpolate” has been clarified.  The problem of mutational saturation is now included in the discussion of Figure 1.  The term “multiply impaired” has been replaced by a clearer wording.  LUCA is discussed only in Section 1.  The protein cycle is discussed in a separate Section 4, which is concerned with the course of evolution before LUCA.
I must note that a careful evaluation of all facets requires expertise in a multitude of disciplines (from prebiotic chemistry and structural biology to evolutionary bioinformatics and biochemistry) and considerable time, none of which I possess.