[clug] Anyone using 'snappy', Google's fast compression?

[steve jenkin]

Mike Carden wrote on 12/05/11 4:49 PM:
>> There exists no lossless compression algorithm that can reduce
>> the size of all inputs (if it did exist, run it on the output again and
>> again).
> 
> 
> Step 3.   Profit!


In his Turing Award speech, "Reflections on Trust", Ken Thompson talks
about writing programs that print themselves.

This nicely answers the question of "If I multi-compress a file, will it
reach a stable size".
A: good algorithms *can*. Proof is by Thompson program.

But if you are hitting them with streamed content (they can't
backtrack), then I don't have an answer...
you think not, but there are much smarter people out there than me :-(


-- 
Steve Jenkin, Info Tech, Systems and Design Specialist.
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