Here is one way of doing so. According to the BIV hypothesis, the experiences you would have as a BIV and the experiences you have as a normal person are perfectly alike, indistinguishable, so to speak, “from the inside”. Thus, although it appears to you as if you are a normally embodied human being, everything would appear exactly the same way to a BIV. Thus, the way things appear to you cannot provide you with knowledge that you are not a BIV. But if the way things appear to you cannot provide