Joseph P. Fishman’s Creating Around Copyright advances a provocative thesis: some restrictions on creativity can spur the development of additional creative solutions, and (some level of) copyright might be one of those restrictions. If Picasso was right that “forcing yourself to use restricted means is the sort of restraint that liberates invention,” then being forced by law to use restricted means might do the same thing, ultimately leading to more varied and thus more valuable works. At the outset, it’s important to know the baseline against which we ought to evaluate Fishman’s claims. Most copyright restrictionists, of whom I count myself one, don’t want to eliminate all copyright law. Fishman’s argument is directed at creators who want...