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Date: Mon, 15 Jun 2015 19:18:25 +0200
Message-ID: <CANEZrP1D0AN_iRobD2RYXHCCWhU7Vk6yZ35+ytsQ0zonSCG_HQ@mail.gmail.com>
From: Mike Hearn <mike@plan99.net>
To: Pieter Wuille <pieter.wuille@gmail.com>
Content-Type: multipart/alternative; boundary=f46d043bdeda3dc72d051891a5ff
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Scaling Bitcoin with Subchains
Precedence: list

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>
> It's simple: either you care about validation, and you must validate
> everything, or you don't, and you don't validate anything.
>
Pedantically: you could validate a random subset of all scripts, to give
yourself probabilistic verification rather than full vs SPV. If enough
people do it with a large enough subset the probability of a problem being
detected goes up a lot. You still pay the cost of the database updates.

But your main point is of course completely right, that side chains are not
a way to scale up.

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<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote"><blo=
ckquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #c=
cc solid;padding-left:1ex"><p dir=3D"ltr">It&#39;s simple: either you care =
about validation, and you must validate everything, or you don&#39;t, and y=
ou don&#39;t validate anything.</p></blockquote><div>Pedantically: you coul=
d validate a random subset of all scripts, to give yourself probabilistic v=
erification rather than full vs SPV. If enough people do it with a large en=
ough subset the probability of a problem being detected goes up a lot. You =
still pay the cost of the database updates.</div><div><br></div><div>But yo=
ur main point is of course completely right, that side chains are not a way=
 to scale up.=C2=A0<br></div></div></div></div>

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