No human engineered system can obey any Law of Physics without default because it is quantum mechanically physical in our discovered String Matching Field (Mallick, Hamburger, Mallick (2016, 2017, 2018), Mallick, Raychaudhury, Mallick and others (2018)) with the Copenhagen Intrepretation of Quantum Mechanics because as we have shown by our Dbranes String Theory Calculus (Mallick et.al.), the Bohr's model of the atom is corroborated in the geodesic environmental embedding with quantum mechanical "Vector Diffeotopy of Embedding with Jump Quantum Conductance" (Mallick et. al.). Hence we have proved by experiments on electronic stock exchanges of India that the Copenhagen Intrepretation works in the geodesic stock exchange internetworks. Thus such stochastic networks may evolve differently at different times but still preserve quantum mechanical systems equilibrium.
In my thesis; I wrote a FORTRAN program for a Monte Carlo and Markov chain stochastic model for a complex stochastic chemical reaction. The challenge was that the stochastic model fits the experimental data.