Compression of random binary data

[Lele Gaifax]

Steve D'Aprano <steve+python at pearwood.info> writes:

> But given an empty file, how do you distinguish the empty file you get
> from 'music.mp3' and the identical empty file you get from 'movie.avi'?

That's simple enough: of course one empty file would be
"music.mp3.zip.zip.zip", while the other would be
"movie.avi.zip.zip.zip.zip.zip"... some sort of
https://en.wikipedia.org/wiki/Water_memory applied to file system entries :-)

ciao, lele.
-- 
nickname: Lele Gaifax | Quando vivrò di quello che ho pensato ieri
real: Emanuele Gaifas | comincerò ad aver paura di chi mi copia.
lele at metapensiero.it  |                 -- Fortunato Depero, 1929.