<oembed><type>rich</type><version>1.0</version><author_name>npub1swfeusu3ua9trup00qcnrgc2yndksyvgku4epk5tec7u4fmrez6qxpul5t</author_name><author_url>https://nostr.ae/npub1swfeusu3ua9trup00qcnrgc2yndksyvgku4epk5tec7u4fmrez6qxpul5t</author_url><provider_name>njump</provider_name><provider_url>https://nostr.ae</provider_url><html>📅 Original date posted:2015-02-12&#xA;📝 Original message:&gt; &#34;The approach&#34; is how Bitcoin has always worked.&#xA;&gt;&#xA;&#xA;Mike, you&#39;re making &#34;it worked before, and thus it will work in future&#34;&#xA;kind of an argument.&#xA;It is an extremely shitty kind of an argument. And it can be used to&#xA;justify any kind of bullshit.&#xA;E.g. any scamcoin which haven&#39;t yet collapsed will work forever.&#xA;&#xA;As I mentioned, it depends on scale. Highly sophisticated attacks are only&#xA;feasible when scale is sufficiently big.&#xA;I.e. when you have millions of dollars transacted each day it is one thing,&#xA;but if you process billions of dollars, it becomes a whole another matter.&#xA;&#xA;The best way to profit from zero-confirmation payment disruption is through&#xA;derivatives: short-sell Bitcoin while performing this attack. But this kind&#xA;of an attack depends on a number of conditions:&#xA;&#xA;1. highly liquid and reliable derivative market&#xA;2. sufficiently stable exchange rate&#xA;3. significant attack impact: lots of merchants relying on&#xA;zero-confirmation payments, and lots of customers paying this way&#xA;4. significant amounts of capital available to the attacker&#xA;&#xA;These conditions are not yet met, and were never met in the Bitcoin&#39;s&#xA;history so far.&#xA;This is why I wrote &#34;5 years from now&#34;, I believe that we might reach those&#xA;conditions around that time.&#xA;&#xA;Direct impact of an attack might actually be low (but even if it is just&#xA;0.1%, 0.1% of 1 billion is 10 million, which isn&#39;t bad), but attacker might&#xA;profit from the panic it causes.&#xA;&#xA;Note that I&#39;m talking about situation where Bitcoin-aware PoS solutions are&#xA;deployed on a big scale, so cost of upgrade might be huge.&#xA;&#xA;So anyway, in my opinion, it is actually great that Bitcoin is still&#xA;relatively small: we have an opportunity to analyze and improve things.&#xA;But you seem to be hostile to people who do that (and who do not share your&#xA;opinion), which is kinda uncool.&#xA;&#xA;Also, you do not bother to back your intuition with rigorous reasoning,&#xA;while also attacking people who offer alternatives with non-rigorous&#xA;slipper-slope kind of arguments. Which is doubly uncool.&#xA;-------------- next part --------------&#xA;An HTML attachment was scrubbed...&#xA;URL: &lt;http://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20150212/c39d4998/attachment.html&gt;</html></oembed>