 The first problem facing Stipulative Fiat is whether or not stipulation, or the bare intentions of language users, suffice to establish representational relationships. In the philosophy of language this gets called the “Humpty Dumpty” problem. It concerns whether or not Lewis Carroll’s Humpty Dumpty could use the word “glory” to mean “a nice knockdown argument” (Donnellan 1968; MacKay 1968). (We ignore the difference between meaning and denotation here). In that context it doesn’t seem like he can, and analogous questions can be posed in the context of scientific representation: can a scientist make any model represent any target simply by stipulating that it does?