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 
 This May  Hold  True  Out  There...  But 
 Maybe  Not In Signal Wizardry? Depending 
 On  Your  Technique,  You  Might  Easily 
            Find Recurrences.