 It bears noting that few adherents of the structuralist account of scientific representation, most closely associated with the semantic view of theories, explicitly defend this position (although see Ubbink 1960: 302). Representation was not the focus of attention in the semantic view, and the attribution of (something like) Structuralism 1 to its supporters is an extrapolation. Representation became a much-debated topic in the first decade of the 21st century, and many proponents of the semantic view then either moved away from Structuralism 1, or pointed out that they never held such a view. We turn to more advanced positions shortly, but to understand what motivates such positions it is helpful to understand why Structuralism 1 fails.