Received: from sog-mx-2.v43.ch3.sourceforge.com ([172.29.43.192] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1RdPn3-0003Ru-KE for bitcoin-development@lists.sourceforge.net; Wed, 21 Dec 2011 17:17:17 +0000 Received-SPF: pass (sog-mx-2.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.210.175 as permitted sender) client-ip=209.85.210.175; envelope-from=jordanmack1981@gmail.com; helo=mail-iy0-f175.google.com; Received: from mail-iy0-f175.google.com ([209.85.210.175]) by sog-mx-2.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1RdPn2-00066S-Nd for bitcoin-development@lists.sourceforge.net; Wed, 21 Dec 2011 17:17:17 +0000 Received: by iakh37 with SMTP id h37so10856193iak.34 for ; Wed, 21 Dec 2011 09:17:11 -0800 (PST) Received: by 10.43.58.10 with SMTP id wi10mr7586055icb.57.1324487831486; Wed, 21 Dec 2011 09:17:11 -0800 (PST) Received: from [192.168.0.50] (c-67-188-239-72.hsd1.ca.comcast.net. [67.188.239.72]) by mx.google.com with ESMTPS id wo4sm8947453igc.5.2011.12.21.09.17.09 (version=SSLv3 cipher=OTHER); Wed, 21 Dec 2011 09:17:10 -0800 (PST) Sender: Jordan Mack Message-ID: <4EF2148D.40801@parhelic.com> Date: Wed, 21 Dec 2011 09:17:01 -0800 From: Jordan Mack User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0) Gecko/20111105 Thunderbird/8.0 MIME-Version: 1.0 To: bitcoin-development@lists.sourceforge.net References: <82659F61-0449-47BB-88DC-497E0D02F8A1@ceptacle.com> <4EEE58CA.5090902@justmoon.de> <67FAA76C-1734-471D-A3D8-31E5216DD512@ceptacle.com> In-Reply-To: <67FAA76C-1734-471D-A3D8-31E5216DD512@ceptacle.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Score: -1.4 (-) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for sender-domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (jordanmack1981[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.1 FREEMAIL_ENVFROM_END_DIGIT Envelope-from freemail username ends in digit (jordanmack1981[at]gmail.com) 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.0 AWL AWL: From: address is in the auto white-list X-Headers-End: 1RdPn2-00066S-Nd Subject: Re: [Bitcoin-development] Protocol extensions X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Dec 2011 17:17:17 -0000 I think it would be a lot more than that. According to the Scalability page (https://en.bitcoin.it/wiki/Scalability) if Bitcoin took over all credit card transactions, that would be about 1.14GB per block. I believe that is 58.5PB per year. (6*24*365*1.14/1024) This would also mean the distribution of 2MB of block data per second, which doesn't include broadcast overhead. On 12/21/2011 12:50 AM, Michael Grønager wrote: > when bitcoin takes over all credit card transactions (!), and even before that, > we will meet a scalability problem. The blockchain will grow rapidly, > (1MB/10min or 50GB/yr)