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.