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From: Ryan Carboni <ryan.jc.pc@gmail.com>
To: Allen Piscitello <allen.piscitello@gmail.com>,
	bitcoin-development@lists.sourceforge.net
Subject: Re: [Bitcoin-development] Bitcoin difficulty sanity check suggestion
Date: Mon, 23 Dec 2013 23:41:08 -0800	[thread overview]
Message-ID: <CAO7N=i3LEGJ-fSApYPhoAkL=BCQuHmYZgOCrq9OOZe0SY4Tb1g@mail.gmail.com> (raw)
In-Reply-To: <CAJfRnm4EouQFwpKXLZX4GtfE5hzvNMufYxm=Kt+J3iwy9a9edg@mail.gmail.com>

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Maybe it's because the arguments being presented are nonsensical and
irrelevant to the current Bitcoin network topology, composed of a small
number of mining pools, not solo miners? Furthermore I think people would
realize that their mining pool has gone "off the reservation" so to speak.


On Mon, Dec 23, 2013 at 8:05 PM, Allen Piscitello <
allen.piscitello@gmail.com> wrote:

> Ryan,
>
> Why do you continue to try to correct people who clearly have put more
> thought into this than you?  Everyone understood you just fine, you just
> seem to have trouble comprehending why your ideas are terrible.
>
>
> On Mon, Dec 23, 2013 at 7:51 PM, Ryan Carboni <ryan.jc.pc@gmail.com>wrote:
>
>> I think you misunderstood my statement. If time > 3 days, and after 4
>> blocks have been mined, then difficulty would be reset.
>>
>> In theory, one would have to isolate roughly one percent of the Bitcoin
>> network's hashing power to do so. Which would indicate an attack by a state
>> actor as opposed to anything else. Arguably, the safest way to run Bitcoin
>> is through a proprietary dial-up network.
>>
>>
>> On Sun, Dec 22, 2013 at 7:22 PM, Mark Friedenbach <mark@monetize.io>wrote:
>>
>>> -----BEGIN PGP SIGNED MESSAGE-----
>>> Hash: SHA1
>>>
>>> Ryan, these sort of adjustments introduce security risks. If you were
>>> isolated from the main chain by a low-hashpower attacker, how would
>>> you know? They'd need just three days without you noticing that
>>> network block generation has stalled - maybe they wait for a long
>>> weekend - then after that the block rate is normal but completely
>>> controlled by the attacker (and isolated from mainnet).
>>>
>>> There are fast acting alternative difficulty adjustment algorithms
>>> being explored by some alts, such as the 9-block interval, 144-block
>>> window, Parks-McClellan FIR filter used by Freicoin to recover from
>>> just such a mining bubble. If it were to happen to bitcoin, there
>>> would be sophisticated alternative to turn to, and enough time to make
>>> the change.
>>>
>>> On 12/22/2013 07:10 PM, Ryan Carboni wrote:
>>> > I think Bitcoin should have a sanity check: after three days if
>>> > only four blocks have been mined, difficulty should be adjusted
>>> > downwards.
>>> >
>>> > This might become important in the near future. I project a
>>> > Bitcoin mining bubble.
>>> >
>>> -----BEGIN PGP SIGNATURE-----
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>>> Comment: GPGTools - http://gpgtools.org
>>> Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
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>>> iQIcBAEBAgAGBQJSt6yGAAoJEAdzVfsmodw4SegQAIJAWW0OgSjediSWq+EpkReS
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>>>
>>
>>
>>
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>> _______________________________________________
>> Bitcoin-development mailing list
>> Bitcoin-development@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/bitcoin-development
>>
>>
>

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  reply	other threads:[~2013-12-24  7:41 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-23  3:10 [Bitcoin-development] Bitcoin difficulty sanity check suggestion Ryan Carboni
2013-12-23  3:22 ` Mark Friedenbach
2013-12-23 20:22   ` Robin Ranjit Singh Chauhan
2013-12-24  1:51   ` Ryan Carboni
2013-12-24  4:05     ` Allen Piscitello
2013-12-24  7:41       ` Ryan Carboni [this message]
2013-12-24  7:53         ` Gavin Costin
     [not found]     ` <52B8EB37.2080006@monetize.io>
2013-12-24  7:37       ` Ryan Carboni
2013-12-24  8:34     ` Matt Corallo

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