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.