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.