On Sep 20, 2015 10:58 PM, "Rusty Russell" <rusty@rustcorp.com.au> wrote:
>
> Jorge Timón <jtimon@jtimon.cc> writes:
> > I disagree with the importance of this concern and old soft/hardforks
will
> > replace this activation mechanism with height, so that's an argument in
> > favor of using the height from the start. This is "being discussed" in a
> > thread branched from bip99's discussion.
>
> Thanks, I'll have to dig through bitcoin-dev and find it.

The initial thread is linked to from the BIP document (which is in the
bitcoin/bips PR).