[148470] in cryptography@c2.net mail archive
[Cryptography] What is or isn't Bitcoin
daemon@ATHENA.MIT.EDU (ianG)
Mon Dec 16 12:35:48 2013
X-Original-To: cryptography@metzdowd.com
Date: Mon, 16 Dec 2013 12:44:09 +0300
From: ianG <iang@iang.org>
To: cryptography@metzdowd.com
In-Reply-To: <CAG5KPzyjMu3Fi7CYeP9Hk-PwWqsugDeAmKp9Xp7kTNcXycw8cQ@mail.gmail.com>
Errors-To: cryptography-bounces+crypto.discuss=bloom-picayune.mit.edu@metzdowd.com
On 15/12/13 14:21 PM, Ben Laurie wrote:
> On 14 December 2013 00:10, Greg <greg@kinostudios.com> wrote:
>> Decentralized: there is no central authority controlling all the names
>
> As I pointed out elsewhere, Bitcoin (and hence Namecoin) is not
> decentralised: http://www.links.org/files/decentralised-currencies.pdf.
I wrote similar musings in
http://iang.org/papers/BitcoinBreachesGreshamsLaw.pdf
I don't disagree, but the devil is in the details. As I mentioned in my
recent talk at Afrikoin, the economics never lies. The problem is that
we might apply the wrong economics, and it will only reveal itself to be
right or wrong well after the fact.
Your analysis gets somewhat caught up in the definition of decentralised
as being some sort of binary property, when in reality
(de)centralisation is more of a comparison between different solutions
along an axis of more or less (de)centralisation. Proving something as
decentralised per se isn't going to work, showing that Bitcoin is more
decentralised than say USD is more likely.
Also, the argument fails to account for stickiness and transaction
costs. The group is sticky, in part because the only ones interested
are the ones holding the value. The same argument can be made for USD,
those holding the value are more interested in preserving the group.
Yes, the group can move. A good movie is the "The Counterfeiters" a
german movie about concentration camp inmates being used to 'enter' the
group that subscribed to the value of the British Pound. But because of
the various transaction costs, the group cannot easily move so fast that
the value just collapses without redemption.
(The counterpoint to this observation is that Bitcoin is frequently seen
as a Ponzi or bubble. Those operations migrate their groups as they
feed on their value, and will burst at some point when the group has
migrated too far, and consumed too much value. Right now, the group is
migrating to China...)
iang
[1] http://www.rottentomatoes.com/m/the_counterfeiters_2007/
Also good to see hints about the Sabotage Manual in action...
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