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Date: Sun, 31 May 2015 10:54:10 -0400
Message-ID: <CABsx9T2hfpts5y_M6PdDcxmq9Q2smesJ0Nmp9a9iyPD_MoPC9g@mail.gmail.com>
From: Gavin Andresen <gavinandresen@gmail.com>
To: Alex Mizrahi <alex.mizrahi@gmail.com>
Content-Type: multipart/alternative; boundary=001a11c382d0c7921f051761e13b
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Fwd: Block Size Increase Requirements
Precedence: list

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On Sun, May 31, 2015 at 9:45 AM, Alex Mizrahi <alex.mizrahi@gmail.com>
wrote:

>
>
>> That orphan rate increase will go to whoever is producing the 20MB
>> blocks, NOT you.
>>
>
> This depends on how miners are connected.
>
> E.g. suppose there are three miners, A and B have fast connectivity
> between then, and C has a slow network.
> Suppose that A miners a block and B receives it in 1 second. C receives it
> in 6 seconds.
> This means that blocks mined by C during these ~5 seconds will be orphaned
> because B gets A's block first.
>

Yes, if you are on a slow network then you are at a (slight) disadvantage.
So?

There are lots of equations that go into the "is mining profitable"
equation: cost of power, Internet cost and connectivity, cost of capital,
access to technology other miners don't have, inexpensive labor or rent,
inexpensive cooling, ability to use waste heat...

That's good. An equation with lots of variables has lots of different
maximum solutions, and that means better decentralization -- there is less
likely to be one perfect place or way to mine.

-- 
--
Gavin Andresen

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<div dir=3D"ltr"><div class=3D"gmail_extra"><div class=3D"gmail_quote">On S=
un, May 31, 2015 at 9:45 AM, Alex Mizrahi <span dir=3D"ltr">&lt;<a href=3D"=
mailto:alex.mizrahi@gmail.com" target=3D"_blank">alex.mizrahi@gmail.com</a>=
&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0=
 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div =
class=3D"gmail_extra"><div class=3D"gmail_quote"><span class=3D""><div>=C2=
=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;borde=
r-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div class=3D"gmai=
l_extra"><div class=3D"gmail_quote"><span><div></div></span><div>That orpha=
n rate increase will go to whoever is producing the 20MB blocks, NOT you.</=
div></div></div></div></blockquote><div><br></div></span><div>This depends =
on how miners are connected.</div><div><br></div><div>E.g. suppose there ar=
e three miners, A and B have fast connectivity between then, and C has a sl=
ow network.</div><div>Suppose that A miners a block and B receives it in 1 =
second. C receives it in 6 seconds.</div><div>This means that blocks mined =
by C during these ~5 seconds will be orphaned because B gets A&#39;s block =
first.</div></div></div></div></blockquote><div><br></div><div>Yes, if you =
are on a slow network then you are at a (slight) disadvantage. So?</div><di=
v><br></div><div>There are lots of equations that go into the &quot;is mini=
ng profitable&quot; equation: cost of power, Internet cost and connectivity=
, cost of capital, access to technology other miners don&#39;t have, inexpe=
nsive labor or rent, inexpensive cooling, ability to use waste heat...</div=
><div><br></div><div>That&#39;s good. An equation with lots of variables ha=
s lots of different maximum solutions, and that means better decentralizati=
on -- there is less likely to be one perfect place or way to mine.</div></d=
iv><div><br></div>-- <br><div class=3D"gmail_signature">--<br>Gavin Andrese=
n<br></div>
</div></div>

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