"Did You Say 'Intellectual Property'? It's a Seductive Mirage" (2004) is stallman's argument that the term "intellectual property" is not merely imprecise but actively misleading — a rhetorical device that obscures the distinct legal and ethical questions raised by copyright, patents, trademarks, trade secrets, and other legal regimes that happen to deal with ideas or information.
The essay's core claim is that lumping these different regimes under a single term — "intellectual property" — encourages confused thinking in three ways. First, it suggests a false analogy with physical property, importing intuitions about ownership that do not apply to information (which can be copied without depriving the original holder). Second, it treats legally and morally distinct regimes as if they shared a common logic, when in fact copyright, patents, and trademarks have different justifications, different durations, different scopes, and different effects. Third, it invites the conclusion that anyone who questions any of these regimes is attacking "property" in the broadest sense — a rhetorical move that shuts down legitimate debate.
stallman argues that careful thinking about these issues requires using specific terms: copyright (for protection of expression), patents (for temporary monopoly on inventions), trademarks (for protection of commercial identity). Each must be evaluated separately. His own positions — supporting copyleft as a use of copyright, opposing software-patents-opposition, and skepticism about digital-restrictions-management schemes that go beyond copyright law — are not consistent positions on "intellectual property" in general; they are consistent positions on distinct legal regimes evaluated by their effects on software freedom and user rights.
The essay connects to words-to-avoid, stallman's maintained list of terms that he regards as politically loaded or confusing in contexts related to free software. The concern in both documents is that language shapes thought: using the adversary's framing concedes too much before the argument has begun.
The argument has been influential in academic and policy debates about copyright reform and patent reform, including the work of larry-lessig and others associated with creative-commons who have pressed similar points about the rhetorical distortions of "intellectual property" language.