  in nature that manifest the critical traits, or (b) implement the
    putative traits in computer simulations.  If the hypothesized traits
    generate (give rise to, provide a basis for) the phenomenon of interest,
    either in nature or in the computer, then one has reason to consider them
    further as possible explanations.

The last option of the last step already overlaps with the synthetic phase of work.
Regarding this phase of procedure within the frame of experimental research, it is
important 