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.