Having justification for taking perceptual experiences to be reliable does not entail actually believing perceptual experiences to be reliable

One way of answering the J-question is as follows: perceptual experiences are a source of justification only when, and only because, we have justification for taking them to be reliable.[43] Note that your having justification for believing that p doesn’t entail that you actually believe p. Thus, your having justification for attributing reliability to your perceptual experiences doesn’t entail that you actually believe them to be reliable.