Received-SPF: pass (sog-mx-2.v43.ch3.sourceforge.com: domain of gmail.com
	designates 209.85.192.169 as permitted sender)
	client-ip=209.85.192.169; envelope-from=elombrozo@gmail.com;
	helo=mail-pd0-f169.google.com; 
Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2098\))
Content-Type: multipart/signed;
	boundary="Apple-Mail=_08455CE8-2B7F-4F01-944E-05CFACE57279";
	protocol="application/pgp-signature"; micalg=pgp-sha512
From: Eric Lombrozo <elombrozo@gmail.com>
In-Reply-To: <201506200348.06564.luke@dashjr.org>
Date: Fri, 19 Jun 2015 21:02:06 -0700
Message-Id: <B7B38239-8EF5-4D12-B3E7-40AE152CF5A3@gmail.com>
References: <20150619103959.GA32315@savin.petertodd.org>
	<CAOG=w-u6fmpnojpQmrFEMRK56WDsfhZgm406C3tVax5hsX2sOA@mail.gmail.com>
	<CACq0ZD5VDJRuKiq2NaPyoJdDVMPd+9YWtEr3pauS5ZNzxXXEig@mail.gmail.com>
	<201506200348.06564.luke@dashjr.org>
To: Luke Dashjr <luke@dashjr.org>
Cc: bitcoin-development@lists.sourceforge.net
Subject: Re: [Bitcoin-development] F2Pool has enabled full replace-by-fee
Precedence: list


--Apple-Mail=_08455CE8-2B7F-4F01-944E-05CFACE57279
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
	charset=utf-8


> On Jun 19, 2015, at 8:48 PM, Luke Dashjr <luke@dashjr.org> wrote:
>=20
> On Saturday, June 20, 2015 1:23:03 AM Aaron Voisine wrote:
>> They don't need to be made cryptographically safe, they just have to =
be
>> safer than, for instance, credit card payments that can be charged =
back. As
>> long as it's reasonably good in practice, that's fine.
>=20
> They never will be. You can get a decent rate of success merely by =
making one
> transaction propagate fast (eg, 1 input, 1 output) and the other slow =
(eg,
> 1000 inputs, 1000 outputs) and choosing your peers carefully. The only =
reason
> unconfirmed transactions aren't double spent today is because nobody =
is
> seriously *trying*.
>=20
> Luke
>=20


Newspapers are often sold in vending machines that make it possible for =
anyone to just pay the price of one and take them all=E2=80=A6and most =
of the time they are not that carefully monitored. Why? Because most =
people have better things to do than try to steal a few newspapers. They =
probably were much more closely monitored earlier in their history=E2=80=A6=
but once it became clear that despite the obvious attack vector very few =
people actually try to game it, vendors figured it wasn=E2=80=99t really =
that big a risk. Same thing applies to people trying to steal a piece of =
bubble gum at the cash register at a convenience store by =
double-spending.

- Eric Lombrozo

> =
--------------------------------------------------------------------------=
----
> _______________________________________________
> Bitcoin-development mailing list
> Bitcoin-development@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/bitcoin-development


--Apple-Mail=_08455CE8-2B7F-4F01-944E-05CFACE57279
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename=signature.asc
Content-Type: application/pgp-signature;
	name=signature.asc
Content-Description: Message signed with OpenPGP using GPGMail

-----BEGIN PGP SIGNATURE-----
Comment: GPGTools - https://gpgtools.org

iQIcBAEBCgAGBQJVhOW+AAoJEJNAI64YFENUAUAQAILbh2n1YHjALZb2uXFwgr/o
CRzHsmdY2ImpfYhBlhbsBq1DpcUdnsX6lSeVAlTKX5rVZhyYFxRSf4IaVCkaHDzt
SgWDvd9F4S2N333KHzYrpF4lvj5un3ID8SfFn/1f7NvUMn+mTp9WI0g+S9jL2mHH
rnZJ8yPrZWPwfqEs96dz81j8/OJle3DBUt7Zp6rqv1FNnPn8RPRdMtvSC9jyegzL
WKJvE1hx4F+W/MjC7F2MAaXHgH5Kr2vxkd4+OvhJWY11E6O11BBCmhsG7KaQ1LaU
DF4p9WDUzlcHFBPld1+d+c5mY/9oVeEToe4f+/6iR8N7U8VZ0DKqb0RziFOOFanu
K7+7Dfcj+koH9U1M4Yxp4JxHLDgWnGnRGBkjwwGbGbKPRpv3IUKsKx7G6ancYcM+
xkAik/MSKXPGQTYnra/mubX74td419mzWl2P/PSRjFJtdfvkBqXT4ysyAZtEzVbH
vTOkbM1AoNazjSAwI1cdbpCMYKowNL0+b6B8Cd5HWJgEugUh9p/KVwxk/VrdlG7x
Y5E6uh5UgfzJQpabWsawjTTw4yXW7qa39j+5WFSG0Igm5ZlChVzc3L8xzv0RR6Z6
i+YUGFdd/6C82wgqdcG1r5C6W+iJ0DY05C04loYgEE3R1gojbRwAS1JMi/Vcl6gD
O5kLI34qe41Sfi7bT+2C
=9bYl
-----END PGP SIGNATURE-----

--Apple-Mail=_08455CE8-2B7F-4F01-944E-05CFACE57279--