feedback               
                                      
                            
                            
                                          
 feedback  is for making  the  process  a 
 whole lot more  messy,  to  introduce  a 
 fractal in  the spice  mix... things  or 
 populations  of things  start to be self 
        referential or self eating        
 (autovore...) or spiraling  in or out... 
                                          
 in the sixties they did  research in the 
 jungle  and in the  sea and  they  found 
 that feedback does  not give rise to  an 
 equilibrium. they were  trying to  prove 
 that nature is  a tame beast. but  she's 
                   not!                   
 this may  hold  true  out  there...  but 
 maybe not in  signal wizardry? depending 
 on  your  technique,  you  might  easily 
            find recurrences.