Bundle Theory is Hume's account of the self as a bundle of perceptions held together by relations of resemblance and causation — with no underlying substantial self detectable in introspection.
bundle-theory
Hume's account of the self (and, by extension, of objects) as a bundle of perceptions held together by relations of resemblance and causation rather than by an underlying substance.
Bundle Theory is the account of the self (and, by extension, of objects) developed by David Hume in A Treatise of Human Nature (1739) Book I, Part IV, Section VI. The self, on Hume's analysis, is not an underlying substance that has perceptions; the self is a bundle of perceptions, held together by relations of resemblance and causation but with no further unifying entity beneath them. The position is one of the most striking single moves in modern philosophy of mind and personal identity.
Definition
The bundle theory has two related claims. First, when Hume looks inward by introspection in search of the I that thinks, he finds only successive perceptions — a bundle or collection of different perceptions, which succeed each other with an inconceivable rapidity. The self that the Cartesian tradition had taken to be immediately and indubitably revealed in self-consciousness is not found. Second, the apparent unity of the self over time is not produced by an underlying entity persisting through the changes; it is produced by the relations of resemblance and causation that hold among the successive perceptions. The unity is a feature of the relations, not of a substrate.
Origin
The view emerges with Hume in the Treatise of Human Nature I.iv.6 (1739). The position represents the empiricist project carried to its rigorous conclusion: if all our ideas derive from impressions, and we have no impression of a substantial self underlying our successive perceptions, then we have no warrant for positing such a self. The classical Cartesian self — the I of the cogito, treated as an immediately knowable thinking substance — is a philosophical fiction generated by the failure to apply empiricist principles consistently.
The core claim
The core claim has three parts.
There is no impression of a substantial self. When we introspect, we find only particular perceptions — a pain, an idea, a memory, a desire — each of which is one perception among others. We do not encounter, alongside the perceptions, a further entity that has the perceptions. The traditional self is therefore unwarranted by the principles of empiricist analysis.
Personal identity is constituted by relations among perceptions. What unifies a person across time is not an underlying entity but the relations of resemblance (later perceptions resemble earlier ones), contiguity (perceptions follow one another in temporal proximity), and causation (earlier perceptions cause later ones, through memory, habit, and the workings of the imagination).
The unity of the self is a kind of fiction. Hume is explicit that the apparent unity of the self is something the imagination produces by smoothing over the gaps in the bundle of perceptions. The unity is real in the sense that it is genuinely produced by these relations, but it is not the unity of a single underlying substance.
Hume's own dissatisfaction
A distinctive feature of the bundle theory is Hume's own subsequent dissatisfaction with it. The Appendix to the Treatise (1740), published the year after the Treatise itself, contains Hume's reconsideration of the account of personal identity. Hume confesses that he has not been able to give an adequate account of how the relations among perceptions are supposed to constitute the unity he had described; he calls the analysis a labyrinth and acknowledges that he sees no satisfactory solution.
The nature of Hume's dissatisfaction has been continuously debated. Some readers (especially in the late twentieth century) have argued that the Appendix reservations show Hume implicitly recognizing the inadequacy of pure bundle theory; others argue that Hume's reservations are more limited and that the bundle theory remains his considered position. The textual evidence is genuinely unclear.
The contemporary reception
The bundle theory has been one of the most influential single accounts of personal identity in modern philosophy. Derek Parfit's Reasons and Persons (1984) developed a sophisticated contemporary version, arguing that personal identity is not what matters and that the relations of psychological continuity (resemblance, causation through memory) are themselves what we should care about. The position has substantial implications for ethics, especially around questions of self-interested concern for one's future and the moral significance of personal survival.
The bundle theory has also been criticized continuously. Critics have argued that the relations among perceptions cannot do the unifying work Hume requires (the bundling requires a perspective or framework that the bundle itself does not contain); that personal identity is more robust than the bundle theory allows (we genuinely persist through changes that the bundle theory has difficulty explaining); and that the bundle theory has unattractive ethical consequences. Defenders have responded that these criticisms either rest on the residual influence of substance theory or can be accommodated within a sufficiently sophisticated bundle account.
Common confusions
Bundle theory is not the claim that there is no self. Hume does not deny that there is something we refer to when we speak of the self; he denies only that this something is an underlying substance. The self exists as the bundle and the relations among its elements; it does not exist as a further substrate.
The bundle theory is not committed to a particular view of personal identity over time. Different bundle theories take different positions on what relations among perceptions constitute personal identity (memory continuity, causal continuity, psychological similarity). The general framework is consistent with multiple specific accounts.
Bundle theory is not the same as eliminativism about the self. Eliminativists deny that the self exists at all; bundle theorists hold that the self exists but is constituted by a bundle of perceptions rather than by an underlying substance. The two positions are distinct.
Place in the wiki
Bundle Theory is a satellite of the Pillar concepts Substance (which it explicitly rejects in the case of the self) and is closely related to Belief Systems (which addresses related questions about the structure of mental life).
Further reading
- Hume — the author of the doctrine
- Empiricism — the tradition
- Substance — the metaphysical category bundle theory rejects in the case of the self
- Treatise of Human Nature — the central text
- Cogito — the Cartesian account of the self bundle theory attacks
Satellite of Substance. Hume's account of the self as a bundle of perceptions.