Re: [bitcoin-dev] Fees and the block-finding process

[jl2012@xbt.hk]

Pieter Wuille via bitcoin-dev 於 2015-08-07 12:28 寫到:
> On Fri, Aug 7, 2015 at 5:55 PM, Gavin Andresen
> <gavinandresen@gmail.com> wrote:
> 
>> On Fri, Aug 7, 2015 at 11:16 AM, Pieter Wuille
>> <pieter.wuille@gmail.com> wrote:
>> 
>>> I guess my question (and perhaps that's what Jorge is after): do
>>> you feel that blocks should be increased in response to (or for
>>> fear of) such a scenario.
>> 
>> I think there are multiple reasons to raise the maximum block size,
>> and yes, fear of Bad Things Happening as we run up against the 1MB
>> limit is one of the reasons.
>> 
>> I take the opinion of smart engineers who actually do resource
>> planning and have seen what happens when networks run out of
>> capacity very seriously.
> 
> This is a fundamental disagreement then. I believe that the demand is
> infinite if you don't set a fee minimum (and I don't think we should),
> and it just takes time for the market to find a way to fill whatever
> is available - the rest goes into off-chain systems anyway. You will
> run out of capacity at any size, and acting out of fear of that
> reality does not improve the system. Whatever size blocks are actually
> produced, I believe the result will either be something people
> consider too small to be competitive ("you mean Bitcoin can only do 24
> transactions per second?" sounds almost the same as "you mean Bitcoin
> can only do 3 transactions per second?"), or something that is very
> centralized in practice, and likely both.

What if we reduce the block size to 0.125MB? That will allow 0.375tx/s. 
If 3->24 sounds "almost the same", 3->0.375 also sounds almost the same. 
We will have 50000 full nodes, instead of 5000, since it is so 
affordable to run a full node.

If 0.125MB sounds too extreme, what about 0.5/0.7/0.9MB? Are we going to 
have more full nodes?

No, I'm not trolling. I really want someone to tell me why we 
should/shouldn't reduce the block size. Are we going to have more or 
less full nodes if we reduce the block size?