1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
|
Return-Path: <samson.mow@gmail.com>
Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138])
by lists.linuxfoundation.org (Postfix) with ESMTP id 5DB4DC000D
for <bitcoin-dev@lists.linuxfoundation.org>;
Thu, 18 Feb 2021 11:12:27 +0000 (UTC)
Received: from localhost (localhost [127.0.0.1])
by whitealder.osuosl.org (Postfix) with ESMTP id E6DA086DF0
for <bitcoin-dev@lists.linuxfoundation.org>;
Thu, 18 Feb 2021 11:12:25 +0000 (UTC)
X-Virus-Scanned: amavisd-new at osuosl.org
Received: from whitealder.osuosl.org ([127.0.0.1])
by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)
with ESMTP id NPYW+qn7n87y
for <bitcoin-dev@lists.linuxfoundation.org>;
Thu, 18 Feb 2021 11:12:23 +0000 (UTC)
X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6
Received: from mail-il1-f172.google.com (mail-il1-f172.google.com
[209.85.166.172])
by whitealder.osuosl.org (Postfix) with ESMTPS id C41B386473
for <bitcoin-dev@lists.linuxfoundation.org>;
Thu, 18 Feb 2021 11:12:21 +0000 (UTC)
Received: by mail-il1-f172.google.com with SMTP id z18so1099679ile.9
for <bitcoin-dev@lists.linuxfoundation.org>;
Thu, 18 Feb 2021 03:12:21 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025;
h=mime-version:references:in-reply-to:from:date:message-id:subject:to
:cc; bh=8F+sf/XUnulo4O5xkprNM1p0Lq2/BH8ukF4/I5HtmKQ=;
b=BJBrBvcj4Jgluu5KwAGqPQuGR5FA3djMEouqwfdYAacVgSw7QyJm4PpyrfuYuAR09R
XBQPCby7QVcXfx48yyluixQN3uwh7xvorJp3IbyMktPNnw/qMRobME5WhTzH0Tn/g5Jc
2ZsFrPq6Gy3+MBkKEXqsctRSAOmmKiv0whW9YeaqbakDJwMuLf8myHoV5toPEcRUV1aW
6fITgXAvW/YqAxdTqEpnlJUsC5IBRMZwr2lZSavEh9IwlxV9Ul6ErBjPmrDBpMEmb2bm
HnwfrIRvJN3W3NXvvYlpp8rZbGSrTCTXSN7ONUBaPRWmJ/4N8H4RYuXpTFhXw39VCN/R
vx7A==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=1e100.net; s=20161025;
h=x-gm-message-state:mime-version:references:in-reply-to:from:date
:message-id:subject:to:cc;
bh=8F+sf/XUnulo4O5xkprNM1p0Lq2/BH8ukF4/I5HtmKQ=;
b=ujNcmAkQvKtcuk+cwKstItKRHX6BnFZ26wQthP3BHrMfGLDcOQ2HxJr2zFgZkXb3TC
wl0erc+saMvnrtfV1eTUTDmZVWKbBcryDV+WR8zSmQhWxj0W74TTA/HMTlUstEgXjgo3
bHm83JGS38sjKj7j7AManmergJXVTOMBSDPOVsDMxRUoQzGsndhl8incsFmMO2aLvFpB
tMiXznMjhyMA0SYLO2ZAu9VEVxK0o1o9G9xM+m2gY7Q1FOl+Ec5Z2+16NuTqNgMbPTCd
v1GaAqDj6hgD0juJDVDOkY7Sd1e7g2zb4p8avcHv8Yzpab4Jpn93r+P7KISrTZXKWJ+1
3kWQ==
X-Gm-Message-State: AOAM530iKvDPw6/bvvpHmFujh/YOkK/s5FCTna42W0ZSEngiymeb/b3Q
lpfTCf9fVnwz6b2biGkPj/l3v6xRqX/stcqS9VE=
X-Google-Smtp-Source: ABdhPJy+0PEBWRGxmmlgMVxcWs3+K+igtMMG9K1K+9jbmESBvXTVkmhPFahaPUO/GH1W1mABkSY6wiudpBcNyVP/q6Y=
X-Received: by 2002:a05:6e02:78e:: with SMTP id
q14mr3253934ils.195.1613646741123;
Thu, 18 Feb 2021 03:12:21 -0800 (PST)
MIME-Version: 1.0
References: <CAFvNmHTGkQJnsp7J8q0W3rf2j_djO0J0GNFzrhTpdAvN1GihEA@mail.gmail.com>
<8231ddff-aaa4-4ee0-b25f-40ba9a540aab@gmail.com>
<CAFvNmHSiZhJQ455=RkUVU00ZqagimjGPg_fhC-8oJV=WwM_o=Q@mail.gmail.com>
In-Reply-To: <CAFvNmHSiZhJQ455=RkUVU00ZqagimjGPg_fhC-8oJV=WwM_o=Q@mail.gmail.com>
From: Samson Mow <samson.mow@gmail.com>
Date: Thu, 18 Feb 2021 03:11:54 -0800
Message-ID: <CAAWeQ5fH+pbEx32uEc4gs_arQC7o+GS+HpVeAZGsKr8i6ewL5w@mail.gmail.com>
To: Michael Folkson <michaelfolkson@gmail.com>,
Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
Content-Type: multipart/alternative; boundary="000000000000cc392405bb9a6853"
X-Mailman-Approved-At: Thu, 18 Feb 2021 11:16:24 +0000
Subject: Re: [bitcoin-dev] Yesterday's Taproot activation meeting on
lockinontimeout (LOT)
X-BeenThere: bitcoin-dev@lists.linuxfoundation.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: Bitcoin Protocol Discussion <bitcoin-dev.lists.linuxfoundation.org>
List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/bitcoin-dev>,
<mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=unsubscribe>
List-Archive: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/>
List-Post: <mailto:bitcoin-dev@lists.linuxfoundation.org>
List-Help: <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=help>
List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev>,
<mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=subscribe>
X-List-Received-Date: Thu, 18 Feb 2021 11:12:27 -0000
--000000000000cc392405bb9a6853
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
"An activation mechanism is a consensus change like any other change, can
be contentious like any other change, and we must resolve it like any other
change. Otherwise we risk arriving at the darkest timeline."
Who's we here?
Release both and let the network decide.
On Thu, Feb 18, 2021 at 3:08 AM Michael Folkson via bitcoin-dev <
bitcoin-dev@lists.linuxfoundation.org> wrote:
> Thanks for your response Ariel. It would be useful if you responded to
> specific points I have made in the mailing list post or at least quote
> these ephemeral "people" you speak of. I don't know if you're responding =
to
> conversation on the IRC channel or on social media etc.
>
> > The argument comes from a naive assumption that users MUST upgrade to
> the choice that is submitted into code. But in fact this isn't true and
> some voices in this discussion need to be more humble about what users mu=
st
> or must not run.
>
> I personally have never made this assumption. Of course users aren't
> forced to run any particular software version, quite the opposite. Defaul=
ts
> set in software versions matter though as many users won't change them.
>
> > Does no one realize that it is a very possible outcome that if LOT=3Dtr=
ue
> is released there may be only a handful of people that begin running it
> while everyone else delays their upgrade (with the very good reason of no=
t
> getting involved in politics) and a year later those handful of people ju=
st
> become stuck at the moment of MUST_SIGNAL, unable to mine new blocks?
>
> It is a possible outcome but the likely outcome is that miners activate
> Taproot before LOT is even relevant. I think it is prudent to prepare for
> the unlikely but possible outcome that miners fail to activate and hence
> have this discussion now rather than be unprepared for that eventuality. =
If
> LOT is set to false in a software release there is the possibility (T2 in
> https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2021-February/018=
380.html)
> of individuals or a proportion of the community changing LOT to true. In
> that sense setting LOT=3Dfalse in a software release appears to be no mor=
e
> safe than LOT=3Dtrue.
>
> > The result: a wasted year of waiting and a minority of people who didn'=
t
> want to be lenient with miners by default.
>
> There is the (unlikely but possible) possibility of a wasted year if LOT
> is set to false and miners fail to activate. I'm not convinced by this
> perception that LOT=3Dtrue is antagonistic to miners. I actually think it
> offers them clarity on what will happen over a year time period and remov=
es
> the need for coordinated or uncoordinated community UASF efforts on top o=
f
> LOT=3Dfalse.
>
> > An activation mechanism is a consensus change like any other change, ca=
n
> be contentious like any other change, and we must resolve it like any oth=
er
> change. Otherwise we risk arriving at the darkest timeline.
>
> I don't know what you are recommending here to avoid "this darkest
> timeline". Open discussions have occurred and are continuing and in my
> mailing list post that you responded to **I recommended we propose
> LOT=3Dfalse be set in protocol implementations such as Bitcoin Core**. I =
do
> think this apocalyptic language isn't particularly helpful. In an open
> consensus system discussion is healthy, we should prepare for bad or wors=
t
> case scenarios in advance and doing so is not antagonistic or destructive=
.
> Mining pools have pledged support for Taproot but we don't build secure
> systems based on pledges of support, we build them to minimize trust in a=
ny
> human actors. We can be grateful that people like Alejandro have worked
> hard on taprootactivation.com (and this effort has informed the
> discussion) without taking pledges of support as cast iron guarantees.
>
> TL;DR It sounds like you agree with my recommendation to set LOT=3Dfalse =
in
> protocol implementations in my email :)
>
>
>
>
> On Thu, Feb 18, 2021 at 5:43 AM Ariel Lorenzo-Luaces <
> arielluaces@gmail.com> wrote:
>
>> Something what strikes me about the conversation is the emotion
>> surrounding the letters UASF.
>>
>> It appears as if people discuss UASF as if it's a massive tidal wave of
>> support that is inevitable, like we saw during segwit activation. But th=
e
>> actual definition is "any activation that is not a MASF".
>>
>> A UASF can consist of a single node, ten nodes, a thousand, half of all
>> nodes, all business' nodes, or even all the non mining nodes. On another
>> dimension it can have zero mining support, 51% support, 49% support, or =
any
>> support right up against a miner activation threshold.
>>
>> Hell a UASF doesn't even need code or even a single node running as long
>> as it exists as a possibility in people's minds.
>>
>> The only thing a UASF doesn't have is miner support above an agreed
>> activation threshold (some number above %51).
>>
>> I say this because it strikes me when people say that they are for
>> LOT=3Dtrue with the logic that since a UASF is guaranteed to happen then=
it's
>> better to just make it default from the beginning. Words like coordinati=
on
>> and safety are sometimes sprinkled into the argument.
>>
>> The argument comes from a naive assumption that users MUST upgrade to th=
e
>> choice that is submitted into code. But in fact this isn't true and some
>> voices in this discussion need to be more humble about what users must o=
r
>> must not run.
>>
>> Does no one realize that it is a very possible outcome that if LOT=3Dtru=
e
>> is released there may be only a handful of people that begin running it
>> while everyone else delays their upgrade (with the very good reason of n=
ot
>> getting involved in politics) and a year later those handful of people j=
ust
>> become stuck at the moment of MUST_SIGNAL, unable to mine new blocks? Or
>> attracting a minority of miners, activating, and forking off into a
>> minority fork. Then a lot=3Dfalse could be started that ends up activati=
ng
>> the feature now that the stubborn option has ran its course.
>> The result: a wasted year of waiting and a minority of people who didn't
>> want to be lenient with miners by default. The chains could be called
>> BitcoinLenient and BitcoinStubborn.
>> How is that strictly safer or more coordinated?
>>
>> I may be in the minority, or maybe a silent majority, or maybe a majorit=
y
>> that just hasn't considered this as a choice but honestly if there is
>> contention about whether we're going to be stubborn or lenient with mine=
rs
>> for Taproot and in the future then I prefer to just not activate anythin=
g
>> at all. I'm fine for calling bitcoin ossified, accepting that segwit is
>> Bitcoin's last network upgrade. Taproot is amazing but no new feature is
>> worth a network split down the middle.
>>
>> Maybe in 10 or 20 years, when other blockchains implement features like
>> Taproot and many more, we will become envious enough to put aside our
>> differences on how to behave towards miners and finally activate Taproot=
.
>>
>> An activation mechanism is a consensus change like any other change, can
>> be contentious like any other change, and we must resolve it like any ot=
her
>> change. Otherwise we risk arriving at the darkest timeline.
>>
>> Cheers
>> Ariel Lorenzo-Luaces
>> On Feb 17, 2021, at 7:05 AM, Michael Folkson via bitcoin-dev <
>> bitcoin-dev@lists.linuxfoundation.org> wrote:
>>>
>>> Yesterday (February 16th) we held a second meeting on Taproot
>>> activation on IRC which again was open to all. Despite what appeared
>>> to be majority support for LOT=3Dfalse over LOT=3Dtrue in the first
>>> meeting I (and others) thought the arguments had not been explored in
>>> depth and that we should have a follow up meeting almost entirely
>>> focused on whether LOT (lockinontimeout) should be set to true or
>>> false.
>>>
>>> The meeting was announced here:
>>> https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2021-February/0=
18380.html
>>>
>>> In that mailing list post I outlined the arguments for LOT=3Dtrue (T1 t=
o
>>> T6) and arguments for LOT=3Dfalse (F1 to F6) in their strongest form I
>>> could. David Harding responded with an additional argument for
>>> LOT=3Dfalse (F7) here:
>>> https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2021-February/0=
18415.html
>>>
>>> These meetings are very challenging given they are open to all, you
>>> don=E2=80=99t know who will attend and you don=E2=80=99t know most peop=
le=E2=80=99s views in
>>> advance. I tried to give time for both the LOT=3Dtrue arguments and the
>>> LOT=3Dfalse arguments to be discussed as I knew there was support for
>>> both. We only tried evaluating which had more support and which had
>>> more strong opposition towards the end of the meeting.
>>>
>>> The conversation log is here:
>>> http://gnusha.org/taproot-activation/2021-02-16.log
>>>
>>> (If you are so inclined you can watch a video of the meeting here.
>>> Thanks to the YouTube account =E2=80=9CBitcoin=E2=80=9D for setting up =
the livestream:
>>> https://www.youtube.com/watch?v=3Dvpl5q1ovMLM)
>>>
>>> A summary of the meeting was provided by Luke Dashjr on Mastodon here:
>>> https://bitcoinhackers.org/@lukedashjr/105742918779234566
>>>
>>> Today's #Bitcoin #Taproot meeting was IMO largely unproductive, but we
>>> did manage to come to consensus on everything but LockinOnTimeout.
>>>
>>> Activation height range: 693504-745920
>>>
>>> MASF threshold: 1815/2016 blocks (90%)
>>>
>>> Keep in mind only ~100 people showed for the meetings, hardly
>>> representative of the entire community.
>>>
>>> So, these details remain JUST a proposal for now.
>>>
>>> It seems inevitable that there won't be consensus on LOT.
>>>
>>> Everyone will have to choose for himself. :/
>>>
>>> Personally I agree with most of this. I agree that there wasn=E2=80=99t
>>> overwhelming consensus for either LOT=3Dtrue or LOT=3Dfalse. However, f=
rom
>>> my perspective there was clearly more strong opposition (what would
>>> usually be deemed a NACK in Bitcoin Core review terminology) from
>>> Bitcoin Core contributors, Lightning developers and other community
>>> members against LOT=3Dtrue than there was for LOT=3Dfalse. Andrew Chow
>>> tried to summarize views from the meeting in this analysis:
>>> https://gist.github.com/achow101/3e179501290abb7049de198d46894c7c
>>>
>>> I am also aware of other current and previous Bitcoin Core
>>> contributors and Lightning developers who didn=E2=80=99t attend the mee=
ting in
>>> person who are opposed to LOT=3Dtrue. I don=E2=80=99t want to put them =
in the
>>> spotlight for no reason but if you go through the conversation logs of
>>> not only the meeting but the weeks of discussion prior to this meeting
>>> you will see their views evaluated on the ##taproot-activation
>>> channel. In addition, on taprootactivation.com some mining pools
>>> expressed a preference for lot=3Dfalse though I don=E2=80=99t know how =
strong
>>> that preference was.
>>>
>>> I am only one voice but it is my current assessment that if we are to
>>> attempt to finalize Taproot activation parameters and propose them to
>>> the community at this time our only option is to propose LOT=3Dfalse.
>>> Any further delay appears to me counterproductive in our collective
>>> aim to get the Taproot soft fork activated as early as possible.
>>>
>>> Obviously others are free to disagree with that assessment and
>>> continue discussions but personally I will be attempting to avoid
>>> those discussions unless prominent new information comes to light or
>>> various specific individuals change their minds.
>>>
>>> Next week we are planning a code review of the Bitcoin Core PR #19573
>>> which was initially delayed because of this LOT discussion. As I=E2=80=
=99ve
>>> said previously that will be loosely following the format of the
>>> Bitcoin Core PR review club and will be lower level and more
>>> technical. That is planned for Tuesday February 23rd at 19:00 UTC on
>>> the IRC channel ##taproot-activation.
>>>
>>> Thanks to the meeting participants (and those who joined the
>>> discussion on the channel prior and post the meeting) for engaging
>>> productively and in good faith.
>>>
>>>
>
> --
> Michael Folkson
> Email: michaelfolkson@gmail.com
> Keybase: michaelfolkson
> PGP: 43ED C999 9F85 1D40 EAF4 9835 92D6 0159 214C FEE3
> _______________________________________________
> bitcoin-dev mailing list
> bitcoin-dev@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
>
--000000000000cc392405bb9a6853
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"> "An activation mechanism is a consensus change like =
any other change, can be contentious like any other change, and we must res=
olve it like any other change. Otherwise we risk arriving at the darkest ti=
meline."<div><br></div><div>Who's we here?<br></div><div><br></div=
><div>Release both and let the network decide.</div><div><br></div></div><b=
r><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, =
Feb 18, 2021 at 3:08 AM Michael Folkson via bitcoin-dev <<a href=3D"mail=
to:bitcoin-dev@lists.linuxfoundation.org">bitcoin-dev@lists.linuxfoundation=
.org</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"mar=
gin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1=
ex"><div dir=3D"ltr">Thanks for your response Ariel. It would be useful if =
you responded to specific points I have made in the mailing list post or at=
least quote these ephemeral "people" you speak of. I don't k=
now if you're responding to conversation on the IRC channel or on socia=
l media etc.<div><br></div><div>> The argument comes from a naive assump=
tion that users MUST upgrade to the choice that is submitted into code. But=
in fact this isn't true and some voices in this discussion need to be =
more humble about what users must or must not run.</div><div><br></div><div=
>I personally have never made this assumption. Of course users aren't f=
orced to run any particular software version, quite the opposite. Defaults =
set in software versions matter though as many users won't change them.=
</div><div><br></div><div>> Does no one realize that it is a very possib=
le outcome that if LOT=3Dtrue is released there may be only a handful of pe=
ople that begin running it while everyone else delays their upgrade (with t=
he very good reason of not getting involved in politics) and a year later t=
hose handful of people just become stuck at the moment of MUST_SIGNAL, unab=
le to mine new blocks?</div><div><br></div><div>It is a possible outcome bu=
t the likely outcome is that miners activate Taproot before LOT is even rel=
evant. I think it is prudent to prepare for the unlikely but possible outco=
me that miners fail to activate and hence have this discussion now rather t=
han be unprepared for that eventuality. If LOT is set to false in a softwar=
e release there is the possibility (T2 in=C2=A0<a href=3D"https://lists.lin=
uxfoundation.org/pipermail/bitcoin-dev/2021-February/018380.html" target=3D=
"_blank">https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2021-Febru=
ary/018380.html</a>) of individuals or a proportion of the community changi=
ng LOT to true. In that sense setting LOT=3Dfalse in a software release app=
ears to be no more safe than LOT=3Dtrue.</div><div><br></div><div>> The =
result: a wasted year of waiting and a minority of people who didn't wa=
nt to be lenient with miners by default.</div><div><br></div><div>There is =
the (unlikely but possible) possibility of a wasted year if LOT is set to f=
alse and miners fail to activate. I'm not convinced by this perception =
that LOT=3Dtrue is antagonistic to miners. I actually think it offers them =
clarity on what will happen over a year time period and removes the need fo=
r coordinated or uncoordinated community UASF efforts on top of LOT=3Dfalse=
.</div><div><br></div><div>> An activation mechanism is a consensus chan=
ge like any other change, can be contentious like any other change, and we =
must resolve it like any other change. Otherwise we risk arriving at the da=
rkest timeline.</div><div><br></div><div>I don't know what you are reco=
mmending here to avoid "this darkest timeline". Open discussions =
have occurred and are continuing and in my mailing list post that you respo=
nded to **I recommended we propose LOT=3Dfalse be set in protocol implement=
ations such as Bitcoin Core**. I do think this apocalyptic language isn'=
;t particularly helpful. In an open consensus system discussion is healthy,=
we should prepare for bad or worst case scenarios in advance and doing so =
is not antagonistic or destructive. Mining pools=C2=A0have pledged support =
for Taproot but we don't build secure systems based on pledges of suppo=
rt, we build them to minimize trust in any human actors. We can be grateful=
that people like Alejandro have worked hard on <a href=3D"http://taprootac=
tivation.com" target=3D"_blank">taprootactivation.com</a> (and this effort =
has informed the discussion) without taking pledges of support as cast iron=
guarantees.</div><div><br></div><div>TL;DR It sounds like you agree with m=
y recommendation to set LOT=3Dfalse in protocol implementations in my email=
:)</div><div><br></div><div><br></div></div><br><br><div class=3D"gmail_qu=
ote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Feb 18, 2021 at 5:43 AM =
Ariel Lorenzo-Luaces <<a href=3D"mailto:arielluaces@gmail.com" target=3D=
"_blank">arielluaces@gmail.com</a>> wrote:<br></div><blockquote class=3D=
"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(2=
04,204,204);padding-left:1ex"><div><div dir=3D"auto">Something what strikes=
me about the conversation is the emotion surrounding the letters UASF.<br>=
<br></div>
<div dir=3D"auto">It appears as if people discuss UASF as if it's a mas=
sive tidal wave of support that is inevitable, like we saw during segwit ac=
tivation. But the actual definition is "any activation that is not a M=
ASF".<br><br></div>
<div dir=3D"auto">A UASF can consist of a single node, ten nodes, a thousan=
d, half of all nodes, all business' nodes, or even all the non mining n=
odes. On another dimension it can have zero mining support, 51% support, 49=
% support, or any support right up against a miner activation threshold.<br=
><br></div>
<div dir=3D"auto">Hell a UASF doesn't even need code or even a single n=
ode running as long as it exists as a possibility in people's minds.<br=
><br></div>
<div dir=3D"auto">The only thing a UASF doesn't have is miner support a=
bove an agreed activation threshold (some number above %51).<br><br></div>
<div dir=3D"auto">I say this because it strikes me when people say that the=
y are for LOT=3Dtrue with the logic that since a UASF is guaranteed to happ=
en then it's better to just make it default from the beginning. Words l=
ike coordination and safety are sometimes sprinkled into the argument.<br><=
br></div>
<div dir=3D"auto">The argument comes from a naive assumption that users MUS=
T upgrade to the choice that is submitted into code. But in fact this isn&#=
39;t true and some voices in this discussion need to be more humble about w=
hat users must or must not run.<br><br></div>
<div dir=3D"auto">Does no one realize that it is a very possible outcome th=
at if LOT=3Dtrue is released there may be only a handful of people that beg=
in running it while everyone else delays their upgrade (with the very good =
reason of not getting involved in politics) and a year later those handful =
of people just become stuck at the moment of MUST_SIGNAL, unable to mine ne=
w blocks? Or attracting a minority of miners, activating, and forking off i=
nto a minority fork. Then a lot=3Dfalse could be started that ends up activ=
ating the feature now that the stubborn option has ran its course.<br></div=
>
<div dir=3D"auto">The result: a wasted year of waiting and a minority of pe=
ople who didn't want to be lenient with miners by default. The chains c=
ould be called BitcoinLenient and BitcoinStubborn.<br></div>
<div dir=3D"auto">How is that strictly safer or more coordinated?<br><br></=
div>
<div dir=3D"auto">I may be in the minority, or maybe a silent majority, or =
maybe a majority that just hasn't considered this as a choice but hones=
tly if there is contention about whether we're going to be stubborn or =
lenient with miners for Taproot and in the future then I prefer to just not=
activate anything at all. I'm fine for calling bitcoin ossified, accep=
ting that segwit is Bitcoin's last network upgrade. Taproot is amazing =
but no new feature is worth a network split down the middle.<br><br></div>
<div dir=3D"auto">Maybe in 10 or 20 years, when other blockchains implement=
features like Taproot and many more, we will become envious enough to put =
aside our differences on how to behave towards miners and finally activate =
Taproot.<br><br></div>
<div dir=3D"auto">An activation mechanism is a consensus change like any ot=
her change, can be contentious like any other change, and we must resolve i=
t like any other change. Otherwise we risk arriving at the darkest timeline=
.<br><br></div>
<div dir=3D"auto">Cheers<br></div>
<div dir=3D"auto">Ariel Lorenzo-Luaces<br></div>
<div class=3D"gmail_quote">On Feb 17, 2021, at 7:05 AM, Michael Folkson via=
bitcoin-dev <<a href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org" t=
arget=3D"_blank">bitcoin-dev@lists.linuxfoundation.org</a>> wrote:<block=
quote class=3D"gmail_quote" style=3D"margin:0pt 0pt 0pt 0.8ex;border-left:1=
px solid rgb(204,204,204);padding-left:1ex">
<pre>Yesterday (February 16th) we held a second meeting on Taproot<br>activ=
ation on IRC which again was open to all. Despite what appeared<br>to be ma=
jority support for LOT=3Dfalse over LOT=3Dtrue in the first<br>meeting I (a=
nd others) thought the arguments had not been explored in<br>depth and that=
we should have a follow up meeting almost entirely<br>focused on whether L=
OT (lockinontimeout) should be set to true or<br>false.<br><br>The meeting =
was announced here:<br><a href=3D"https://lists.linuxfoundation.org/piperma=
il/bitcoin-dev/2021-February/018380.html" target=3D"_blank">https://lists.l=
inuxfoundation.org/pipermail/bitcoin-dev/2021-February/018380.html</a><br><=
br>In that mailing list post I outlined the arguments for LOT=3Dtrue (T1 to=
<br>T6) and arguments for LOT=3Dfalse (F1 to F6) in their strongest form I<=
br>could. David Harding responded with an additional argument for<br>LOT=3D=
false (F7) here:<br><a href=3D"https://lists.linuxfoundation.org/pipermail/=
bitcoin-dev/2021-February/018415.html" target=3D"_blank">https://lists.linu=
xfoundation.org/pipermail/bitcoin-dev/2021-February/018415.html</a><br><br>=
These meetings are very challenging given they are open to all, you<br>don=
=E2=80=99t know who will attend and you don=E2=80=99t know most people=E2=
=80=99s views in<br>advance. I tried to give time for both the LOT=3Dtrue a=
rguments and the<br>LOT=3Dfalse arguments to be discussed as I knew there w=
as support for<br>both. We only tried evaluating which had more support and=
which had<br>more strong opposition towards the end of the meeting.<br><br=
>The conversation log is here:<br><a href=3D"http://gnusha.org/taproot-acti=
vation/2021-02-16.log" target=3D"_blank">http://gnusha.org/taproot-activati=
on/2021-02-16.log</a><br><br>(If you are so inclined you can watch a video =
of the meeting here.<br>Thanks to the YouTube account =E2=80=9CBitcoin=E2=
=80=9D for setting up the livestream:<br><a href=3D"https://www.youtube.com=
/watch?v=3Dvpl5q1ovMLM" target=3D"_blank">https://www.youtube.com/watch?v=
=3Dvpl5q1ovMLM</a>)<br><br>A summary of the meeting was provided by Luke Da=
shjr on Mastodon here:<br><a href=3D"https://bitcoinhackers.org/@lukedashjr=
/105742918779234566" target=3D"_blank">https://bitcoinhackers.org/@lukedash=
jr/105742918779234566</a><br><br>Today's #Bitcoin #Taproot meeting was =
IMO largely unproductive, but we<br>did manage to come to consensus on ever=
ything but LockinOnTimeout.<br><br>Activation height range: 693504-745920<b=
r><br>MASF threshold: 1815/2016 blocks (90%)<br><br>Keep in mind only ~100 =
people showed for the meetings, hardly<br>representative of the entire comm=
unity.<br><br>So, these details remain JUST a proposal for now.<br><br>It s=
eems inevitable that there won't be consensus on LOT.<br><br>Everyone w=
ill have to choose for himself. :/<br><br>Personally I agree with most of t=
his. I agree that there wasn=E2=80=99t<br>overwhelming consensus for either=
LOT=3Dtrue or LOT=3Dfalse. However, from<br>my perspective there was clear=
ly more strong opposition (what would<br>usually be deemed a NACK in Bitcoi=
n Core review terminology) from<br>Bitcoin Core contributors, Lightning dev=
elopers and other community<br>members against LOT=3Dtrue than there was fo=
r LOT=3Dfalse. Andrew Chow<br>tried to summarize views from the meeting in =
this analysis:<br><a href=3D"https://gist.github.com/achow101/3e179501290ab=
b7049de198d46894c7c" target=3D"_blank">https://gist.github.com/achow101/3e1=
79501290abb7049de198d46894c7c</a><br><br>I am also aware of other current a=
nd previous Bitcoin Core<br>contributors and Lightning developers who didn=
=E2=80=99t attend the meeting in<br>person who are opposed to LOT=3Dtrue. I=
don=E2=80=99t want to put them in the<br>spotlight for no reason but if yo=
u go through the conversation logs of<br>not only the meeting but the weeks=
of discussion prior to this meeting<br>you will see their views evaluated =
on the ##taproot-activation<br>channel. In addition, on <a href=3D"http://t=
aprootactivation.com" target=3D"_blank">taprootactivation.com</a> some mini=
ng pools<br>expressed a preference for lot=3Dfalse though I don=E2=80=99t k=
now how strong<br>that preference was.<br><br>I am only one voice but it is=
my current assessment that if we are to<br>attempt to finalize Taproot act=
ivation parameters and propose them to<br>the community at this time our on=
ly option is to propose LOT=3Dfalse.<br>Any further delay appears to me cou=
nterproductive in our collective<br>aim to get the Taproot soft fork activa=
ted as early as possible.<br><br>Obviously others are free to disagree with=
that assessment and<br>continue discussions but personally I will be attem=
pting to avoid<br>those discussions unless prominent new information comes =
to light or<br>various specific individuals change their minds.<br><br>Next=
week we are planning a code review of the Bitcoin Core PR #19573<br>which =
was initially delayed because of this LOT discussion. As I=E2=80=99ve<br>sa=
id previously that will be loosely following the format of the<br>Bitcoin C=
ore PR review club and will be lower level and more<br>technical. That is p=
lanned for Tuesday February 23rd at 19:00 UTC on<br>the IRC channel ##tapro=
ot-activation.<br><br>Thanks to the meeting participants (and those who joi=
ned the<br>discussion on the channel prior and post the meeting) for engagi=
ng<br>productively and in good faith.<br></pre></blockquote></div></div></b=
lockquote></div><br clear=3D"all"><div><br></div>-- <br><div dir=3D"ltr"><d=
iv dir=3D"ltr"><div><div dir=3D"ltr"><div><div dir=3D"ltr"><div dir=3D"ltr"=
><div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr"><font face=3D"arial, he=
lvetica, sans-serif" color=3D"#000000">Michael Folkson</font><div><font fac=
e=3D"arial, helvetica, sans-serif" color=3D"#000000">Email:=C2=A0<a href=3D=
"mailto:michaelfolkson@gmail.com" target=3D"_blank">michaelfolkson@gmail.co=
m</a></font></div><div><font face=3D"arial, helvetica, sans-serif" color=3D=
"#000000">Keybase: michaelfolkson</font></div><div><font face=3D"arial, hel=
vetica, sans-serif" color=3D"#000000">PGP: 43ED C999 9F85 1D40 EAF4 9835 92=
D6 0159 214C FEE3</font></div></div></div></div></div></div></div></div></d=
iv></div></div>
_______________________________________________<br>
bitcoin-dev mailing list<br>
<a href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org" target=3D"_blank">=
bitcoin-dev@lists.linuxfoundation.org</a><br>
<a href=3D"https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev" =
rel=3D"noreferrer" target=3D"_blank">https://lists.linuxfoundation.org/mail=
man/listinfo/bitcoin-dev</a><br>
</blockquote></div>
--000000000000cc392405bb9a6853--
|