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.