Okay, I can finally write "new" versions of files in #Spritely Crystal (tahoe-lafs / freenet like mutable p2p distributable files that *don't* have consistency guarantees) and then retrieve them again.
I think this will be a useful demonstration of both some cool things we can do in p2p systems and the ways CAP tradeoffs get in the way... and how those tradeoffs reappear everywhere throughout our systems.