TY - JOUR N2 - There have recently been various empirical attempts to answer Molyneux?s question, for example, the experiments undertaken by the Held group. These studies, though intricate, have encountered some objections, for instance, from Schwenkler, who proposes two ways of improving the experiments. One is ??to re-run [the] experiment with the stimulus objects made to move, and/ or the subjects moved or permitted to move with respect to them?? (p. 94), which would promote three dimensional or otherwise viewpoint-invariant representations. The other is ??to use geometrically simpler shapes, such as the cube and sphere in Molyneux?s original proposal, or planar figures instead of three-dimensional solids?? (p. 188). Connolly argues against the first modification but agrees with the second. In this article, I argue that the second modification is also problematic (though still surmountable), and that both Schwenkler and Connolly are too optimistic about the prospect of addressing Molyneux?s question empirically. ID - discovery1474020 UR - http://dx.doi.org/10.1177/2041669515599330 SN - 2041-6695 JF - i-Perception A1 - Cheng, T KW - Molyneux question KW - blind subjects KW - movement KW - raised-line drawings KW - amodal representation KW - touch TI - Obstacles to Testing Molyneux's Question Empirically Y1 - 2015/// AV - public VL - 6 IS - 4 N1 - Creative Commons CC-BY: This article is distributed under the terms of the Creative Commons Attribution 3.0 License (http://www.creativecommons.org/licenses/by/3.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (http://www.uk. sagepub.com/aboutus/openaccess.htm). ER -