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.