Chisholm points out that this view is in sharp conflict with the preanalytic data since, if taken seriously, it implies that there is nothing that is having the perceptions, or feeling the pains and pleasures. He goes on to claim that Hume’s argument for the Bundle Theory is based on a bit of evidence that presupposes (contrary to the theory) that there is an object that is doing the perceiving, and thinking the thoughts. Chisholm points out that Hume mentions occasions on which he enters into what he calls himself; Hume says that on these occasions he stumbles on some particular perception; he says that he never notices anything other than the perceptions. Who or what is this thing that is doing all this entering and stumbling and failing to notice? Is it some single thing? Does it persist through the time of entering and stumbling and failing to notice? If it does, then it is the very thing whose existence Hume seems to be concerned to reject.