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.