The Viability Bridge
The fit
Where a coded solution meets a coded problem. The navigation word is plain; the formal term is the Viability Bridge.
Effective versus allowed
Viable is not the same as admissible
A behaviour can be viable and inadmissible, or admissible and non-viable. The bridge keeps those axes apart so fitness claims stay honest.
The two maps
Solution space × problem space
Arts occupy the Total Solution Space. Contexts occupy the Total Problem Space. The fit is the reading of one against the other — including the 24×5 viability matrix in the full model.