&gt; I find it interesting, and disconcerting, that articulating a defensible competitive advantage is no longer sufficient advice. Now it&#x27;s, &quot;can you be a monopoly? no? go home&quot;.<p>A &quot;defensible competitive advantage&quot; is precisely a &quot;monopoly&quot; as that term is used in economics; that is, a defensible competitive advantage meansyou have something that assures that no other notionally &quot;competing&quot; product or combination of products is a perfect substitute for at least some subset of your products use cases; within that subset of use cases, you therefore have some range of pricing power, which defines a monopoly.