Production controlled by stem process

The previous experiment depicted proliferon production during  a varying demand  which  was driven by the observer. In the present experiment production is driven by the stem CA-0. The proliferon consists of a stem CA-0, and three transitional processes, CA-1, CA-2, and CA-3.   CA-2 gets resources from CA-1 and accumulates them. CA-1 and CA-2 behave like in the previous experiment.  Here they are driven by CA-3.

delivery[2, 1, Min[40, tolerance[3] / 20., 2] ;
delivery[2, 2, Min[40, tolerance[3] / 20.,, 2] ;
delivery[3, 3, 30, 0] ;

If[ p[1,prev] > p[1,now], set rule[250]]; else [set rule[600]]
If[ p[2,prev] > p[2,now], set rule[250]]; else [set rule[600]]
If[ tolerance[3]/20. > 40, kill[CA-3]]

Before the experiment started,  CA-0 planted two zygotes which grew into mature isolated CA-1 and CA-2. When the experiment starts CA-0 plants an isolated CA-3, whose tolerance  controls the production of  CA-1 and CA-2.  When CA-3 tolerance reaches 40 units, CA-0 kills CA-3, plants a new zygote instead and the cycle  starts again. When CA-3 tolerance rises, CA-1 and CA-2  switch  between rules 600 and 250  in the same way they responded to the rising demand of the previous experiment . CA-1 delivers its daily product to CA-2  (accumulator).

Both CA depend on the triggering of CA-3 tolerance. When it  rises they thrive and when it declines  they get leaner. CA-1 delivers its daily production to CA-2. Yet there is more to it. CA-1 actually stimulates CA-2 to produce more and raise its output. If CA-2 would not get its daily tolerance ration, it would look like CA-1.  The daily  ration stimulates its activity.