hmm this is the analogy i can think of:
raw data: red dot,dark red dot, blue dot, light red dot, dark blue dot, red dot, dark blue dot, blue dot, light blue dot, dark blue dot, blue dot,red dot, light red dot,light blue dot.
lossless data:|light red dot @ 4,13|red dot@1,6,12|dark red dot@2|light blue dot@9,14|blue dot@3,8,11|dark blue dot@5,7,10|
lossy data: |blue dots@3,5,7,8,9,10,11,14|red dots@1,2,4,6,12,13|
well i guess the length of the text indicates how much data is used?
please don't shoot me down if this analogy is flawed, just scroll past or correct it if it is so