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.