Figure 9.

Semantic takeover using copier, genome and expressor. Key as in figures 3 and 6. (a) Reactions. (1) Mutation while copying G0 creates G1. (2) E0 creates the machines specified on G1 without error, one of which is the new machine E1. (3) E1 reads G0 as coding for P0, C1, E2. Thus, E1 expresses C1 and E2 without error. (4) E2 reads G1 as coding for P0, C1, E3. Thus, E2 expresses C1 and E3 without error. (5) E3 reads G1 as coding for P0, C1, E3. Thus, E3 expresses C1 and E3 without error. (b) System dynamics. Timing of step 1 and 2 are shown by a red arrow. The original expressor E0 (blue) is replaced by E2, which in turn is replaced by E3.