<oembed><type>rich</type><version>1.0</version><author_name>npub1m230cem2yh3mtdzkg32qhj73uytgkyg5ylxsu083n3tpjnajxx4qqa2np2</author_name><author_url>https://nostr.ae/npub1m230cem2yh3mtdzkg32qhj73uytgkyg5ylxsu083n3tpjnajxx4qqa2np2</author_url><provider_name>njump</provider_name><provider_url>https://nostr.ae</provider_url><html>📅 Original date posted:2017-04-05&#xA;📝 Original message:On Wed, Apr 05, 2017 at 07:39:08PM -0700, Bram Cohen wrote:&#xA;&gt; On Wed, Apr 5, 2017 at 7:31 PM, Peter Todd via bitcoin-dev &lt;&#xA;&gt; &gt; While I&#39;m in favour of blocking covert usage of ASICBOOST, there&#39;s every&#xA;&gt; &gt; reason&#xA;&gt; &gt; to block non-covert usage of it as well. In a low margin business like&#xA;&gt; &gt; mining,&#xA;&gt; &gt; the advatange it gives is enormous - quite possibly 10x your profit margin&#xA;&gt; &gt; -&#xA;&gt; &gt; and given that barrier free access to being able to purchase ASICs is&#xA;&gt; &gt; already&#xA;&gt; &gt; an archilles heal for Bitcoin there is every reason to eliminate this legal&#xA;&gt; &gt; vulnerability. Additionally, it&#39;s a technical vulnerability as well: we&#xA;&gt; &gt; want&#xA;&gt; &gt; getting into the ASIC manufacturing and design business to have as low&#xA;&gt; &gt; barriers&#xA;&gt; &gt; to entry as is feasible, and the ASICBOOST exploit significantly increases&#xA;&gt; &gt; the&#xA;&gt; &gt; minimum capital requirements to do so.&#xA;&gt; &gt;&#xA;&gt; &#xA;&gt; Asicboost also has the problem that it isn&#39;t treating the hashing as a&#xA;&gt; black box, and thus has impacts on what gets mined. In particular it&#xA;&gt; creates an incentive to make blocks smaller. That&#39;s a very unwanted effect,&#xA;&gt; and anything like it should be engineered out on principle.&#xA;&#xA;Agreed! There&#39;s no benefit to Bitcoin for having it - one way or the other&#xA;miners are going to destroy ~12BTC/block worth of energy. Meanwhile it appears&#xA;to have lead to something like a year of stupid political bullshit based on a&#xA;secret advantage - there&#39;s no reason to invite a repeat of this episode.&#xA;&#xA;-- &#xA;https://petertodd.org &#39;peter&#39;[:-1]@petertodd.org&#xA;-------------- next part --------------&#xA;A non-text attachment was scrubbed...&#xA;Name: signature.asc&#xA;Type: application/pgp-signature&#xA;Size: 455 bytes&#xA;Desc: Digital signature&#xA;URL: &lt;http://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20170405/887d8809/attachment.sig&gt;</html></oembed>