anchor.diff:      io:format("~s~n", [string:centre(" Exchanges ", 79, $=)]),
       io:format("~-49s  ~-12s  ~-12s~n", ["Index", "Last (ago)", "All (ago)"]),
       io:format("~79..-s~n", [""]),
  -    [begin
  +    _ = [begin
            Now = os:timestamp(),
            LastStr = format_timestamp(Now, LastTS),
            AllStr = format_timestamp(Now, AllTS),
  
positive.code:                                       string:centre("Mean", 8),
                                        string:centre("Max", 8)]),
      io:format("~79..-s~n", [""]),
      [begin
           io:format("~-49b  ~s  ~s  ~s~n", [Index,
                                             string:centre(integer_to_list(Last), 8),
                                             string:centre(integer_to_list(Mean), 8),
  
negative.code:     io:format("~s~n", [string:centre(" Entropy Trees ", 79, $=)]),
      io:format("~-49s  Built (ago)~n", ["Index"]),
      io:format("~79..-s~n", [""]),
      _ = [begin
           Now = os:timestamp(),
           BuiltStr = format_timestamp(Now, BuiltTS),
           io:format("~-49b  ~s~n", [Index, BuiltStr]),
  