 When Scotus begins discussing his fourth type of certainty—particular knowledge claims about the external world, known through the senses—he ignores this weakened conception of our senses’ reliability. Though later thinkers will be clearer in their indebtedness to the Condemnation of 1277 here, Scotus gives minimal notice of this. Instead, appealing again to his non-free cause claim, he gives explanations of two main types of such experience.