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.