The target optimization functional can often be non-convex, with numerous local extrema. Overall, it is hard to locate a global, or almost global optimum. But it is common to run general coarse grained models of flow networks with local positive feedback rules on the conductivity of the vessels into low efficiency local minima. Oscorm demonstrates the development of the underlying issues in Global Cost Optimization, related to the dynamical equations of network development.

I read some of what you wrote on this page, Moto X3M, and I thought it was very well done and interesting. Keep using the marketing methods!