 From this one might be tempted to conclude that despite his critique of 1968, Stroud, with Brueckner’s assistance, has found a transcendental argument that does in fact establish a conclusion about the external world. However, so far nothing has been said to turn back Stroud’s 1968 critique, and it seems much more likely that the argument Stroud now advances can at best conclude with a version of CT in which the term “independent” must be read in a transcendentally ideal sense – in which, for example, the nature of certain physical objects is determined by our best scientific theories about them, and our sensory experiences can be in error about these objects. And if this is so, then the argument would secure a belief about the external world only on the presupposition of metaphysical idealism, and this is one of the ways in which anti-skeptical transcendental arguments might be doomed according to Stroud’s 1968 critique.