Differentiation: two pathways

Same ultimate goal functions (periodic and inverse)
but different fitness evaluations over initial generations
- Immediate setting:
- fitness is final objective from beginning: one cell reproduces phase of input while the other has to produce inverse
- gradual setting:
- fitness is initially the same phase reproduction from beginning, but target phase shifts for one of the cells over generations  changing fitness landscape!

Same ultimate goal functions (periodic and inverse)