 The idea behind DK2 is that if there truly is this sort of disconnect between the object facts and the factors that lead us to our object beliefs, then it could only be a lucky coincidence if those factors led us to beliefs that lined up with the object facts. And the idea behind DK3 is that since we have no rational grounds for believing that we got lucky, we shouldn’t believe that we did, in which case we should suspend our beliefs about which objects there are and, in particular, our belief that there are  trees.[38] 