If users can opt-in to another security model, why can't they opt-in to
another scaling model? The mainchain (Bitcoin) does not have to adopt
any of the changes made to a sidechain such as larger blocks for example.


On 07/11/2017 01:01 PM, Pieter Wuille via bitcoin-dev wrote:
> On Jul 11, 2017 09:18, "Chris Stewart via bitcoin-dev"
> <bitcoin-dev@lists.linuxfoundation.org
> <mailto:bitcoin-dev@lists.linuxfoundation.org>> wrote:
>
>     Concept ACK.
>
>     If drivechains are successful they should be viewed as the way we
>     scale
>
>
> I strongly disagree with that statement.
>
> Drivechains, and several earlier sidechains ideas, are not a
> scalability improvement, but merely enabling users to opt-in for
> another security model.
>
> While obviously any future with wider adoption will need different
> technologies that have different trade-offs, and anyone is free to
> choose their security model, I don't think this particular one is
> interesting. In terms of validation cost to auditors, it is as bad as
> just a capacity increase on chain, while simultaneously adding the
> extra risk of miners being able to vote to steal your money.
>
> Cheers,
>
> -- 
> Pieter
>
>
>
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