From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 5710814F2 for ; Fri, 18 Sep 2015 23:24:40 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from ozlabs.org (ozlabs.org [103.22.144.67]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id BD77E268 for ; Fri, 18 Sep 2015 23:24:39 +0000 (UTC) Received: by ozlabs.org (Postfix, from userid 1011) id 0139B140A98; Sat, 19 Sep 2015 09:24:36 +1000 (AEST) From: Rusty Russell To: Jorge =?utf-8?Q?Tim=C3=B3n?= , Tier Nolan In-Reply-To: References: <87mvwqb132.fsf@rustcorp.com.au> <87r3lyjewl.fsf@rustcorp.com.au> User-Agent: Notmuch/0.17 (http://notmuchmail.org) Emacs/24.4.1 (x86_64-pc-linux-gnu) Date: Fri, 18 Sep 2015 07:30:27 +0930 Message-ID: <87eghwiu4k.fsf@rustcorp.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-2.9 required=5.0 tests=BAYES_00, DATE_IN_PAST_24_48, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Cc: Bitcoin Dev Subject: Re: [bitcoin-dev] [BIP Proposal] Version bits with timeout and delay. X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Development Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Sep 2015 23:24:40 -0000 Jorge Tim=C3=B3n via bitcoin-dev wr= ites: > I agree on using height vs time. Rusty, what do you mean by being easier > for bip writers? How is writing "block x" any harder than writing "date y= ". Three years from drafting is reasonable. How many blocks is that? Hmm, better make it 6 years of blocks just in case we have a hash race. Deployment speed is measured in months, not blocks. It's hard enough to guess without adding another variable. Cheers, Rusty.