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.