From: Rusty Russell <rusty@rustcorp.com.au>
To: Jorge =?utf-8?Q?Tim=C3=B3n?= <jtimon@jtimon.cc>, Tier Nolan
	<tier.nolan@gmail.com>
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	<87r3lyjewl.fsf@rustcorp.com.au>
	<CABm2gDqh=Dv2Ygctg+jEt61N_nJDRBMqdZypSPtmfM2QrY4AYQ@mail.gmail.com>
	<CAE-z3OXATJ6HGKqU=vxc8k-yCMAMwXiWQJxvO3D_O256_ZODtw@mail.gmail.com>
	<CABm2gDppFsTbh3JtdJkAkV_GzKFYAOLiEmtQPCgS9O6b7eWFuw@mail.gmail.com>
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Date: Fri, 18 Sep 2015 07:30:27 +0930
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Cc: Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] [BIP Proposal] Version bits with timeout and
	delay.
Precedence: list

Jorge Tim=C3=B3n via bitcoin-dev <bitcoin-dev@lists.linuxfoundation.org> 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.