....~==$#@                                          @#$==~....
...~==$#@@                                          @@#$==~...
..~==$#@@#                                          #@@#$==~..
.~==$#@@##                                          ##@@#$==~.
..~==$#@@#                                          #@@#$==~..
...~==$#@@              ~~~~~~~~~~~~~~              @@#$==~...
....~==$#@              ~............~              @#$==~....
.....~==$#              ~.          .~              #$==~.....
......~==$              ~. 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.            ##@@#$==~.
..~==$#@@#                                          #@@#$==~..
...~==$#@@                                          @@#$==~...
....~==$#@                                          @#$==~....
.....~==$#                                          #$==~.....
......~==$                                          $==~......
.......~==                                          ==~.......