I&#x27;m not trying to be obstinate, but does that argument apply to anything, or just to attractive things, like drugs and guns? Or are there just certain arbitrary things, that we find out by experience, that are subject to that &quot;making X illegal only causes a black market&quot; logic?<p>I&#x27;m asking because I&#x27;d like to have an easy-to-use argument to trot out for things like making copyright stricter, or other things that hinder my ease of use.