I think Aaronson&#x27;s Q&amp;A w&#x2F; MIT News is the most accessible explanation of why this isn&#x27;t an &quot;it works!&quot; moment. It&#x27;s a complex, nuanced argument so it&#x27;s easier to just read than try to summarize here [1]<p>I think basically if you grasp why Selby&#x27;s algorithm is able to beat D-Wave, you&#x27;ll understand why D-Wave isn&#x27;t a useful quantum computer, whatever terminology you want to use to describe it.<p>N.B. Even Aaronson admits D-Wave may have useful technology[2], it&#x27;s just that the present &quot;dirty qbit&quot; approach doesn&#x27;t give you a machine useful for anything more than basic science research, which is not at all how D-Wave have hyped it.<p>[1] <a href="http:&#x2F;&#x2F;news.mit.edu&#x2F;2015&#x2F;3q-scott-aaronson-google-quantum-computing-paper-1211" rel="nofollow">http:&#x2F;&#x2F;news.mit.edu&#x2F;2015&#x2F;3q-scott-aaronson-google-quantum-co...</a><p>[2] <a href="http:&#x2F;&#x2F;www.scottaaronson.com&#x2F;blog&#x2F;?p=2555#comment-967324" rel="nofollow">http:&#x2F;&#x2F;www.scottaaronson.com&#x2F;blog&#x2F;?p=2555#comment-967324</a>