Introduction
This essay explores Laurence BonJour’s analysis in chapters 6 and 7 of his book Epistemology: Classic Problems and Contemporary Responses, focusing on the inherited early modern view of perception from philosophers like Locke, Berkeley, and Hume. In this framework, sensory experiences act as intermediaries between the perceiver and the external world, raising questions about how these experiences justify knowledge of reality (BonJour, 2010). BonJour critiques phenomenalism as hopeless, advocates for representative realism as the viable option, and dismisses direct realism as not truly alternative. The discussion will explain these positions and evaluate whether they overcome external world skepticism, arguing that the intermediary model inherently fuels skeptical doubts. By examining these ideas, the essay highlights ongoing challenges in epistemology, drawing on BonJour’s insights to assess their implications for knowledge claims.
Phenomenalism and Its Hopelessness
BonJour deems phenomenalism “hopeless” because it fails to bridge the gap between sensory experiences and the external world in a way that supports genuine knowledge. Phenomenalism, as influenced by Berkeley’s idealism and Hume’s empiricism, posits that physical objects are merely collections of actual and possible sense-data or phenomena (BonJour, 2010). For instance, a table is not an independent entity but a bundle of sensory impressions, such as colours and textures, that would appear under certain conditions. However, BonJour argues this view collapses into solipsism or fails to account for unperceived objects. If objects exist only as phenomena, then statements about them reduce to counterfactuals—like “if I were to look, I would see the table”—which lack empirical grounding. This leads to an infinite regress, as verifying one counterfactual requires another, making knowledge claims unverifiable (BonJour, 2010). Furthermore, phenomenalism cannot explain the coherence and predictability of experiences without assuming an external structure, which it denies. As a student of epistemology, I find this critique compelling, as it exposes how phenomenalism, while avoiding direct skepticism, ultimately undermines the objectivity needed for knowledge.
Representative Realism as a Solution
In contrast, BonJour insists that representative realism overcomes phenomenalism’s flaws by positing that sensory experiences represent an independent external world, rather than constituting it. Drawing from Locke’s distinction between primary and secondary qualities, this view holds that perceptions are caused by real objects, with experiences serving as reliable intermediaries (BonJour, 2010). Unlike phenomenalism, representative realism allows for objects to exist independently, even when unperceived, thus avoiding the regress problem. BonJour argues it provides a basis for knowledge through causal inference: sensory data, if systematically coherent, justify beliefs about external causes. For example, the consistent appearance of a table across senses and observers suggests a real object causing those representations. This overcomes phenomenalism’s hopelessness by grounding knowledge in a representational link, where experiences are evidence of reality rather than reality itself (BonJour, 2010). However, it requires foundationalist or coherentist justifications to ensure representations are accurate, which BonJour explores as necessary for epistemic warrant.
Direct Realism Not an Alternative
BonJour holds that direct realism does not offer a genuine alternative because it remains trapped within the same intermediary framework it claims to bypass. Direct realism asserts that we perceive objects directly, without intermediaries, as in naive realism where the world is exactly as it appears (BonJour, 2010). Yet, BonJour contends this ignores illusions and hallucinations, which show that perception involves subjective experiences that may not match reality. Early modern philosophers like Hume demonstrated that even “direct” perceptions are mediated by ideas or impressions, making direct realism indistinguishable from representative forms in practice (Hume, 1739). Thus, it fails to escape the central problem of relating experiences to the world, merely rephrasing it without resolving skeptical challenges.
Overcoming Skepticism? The Inherent Roots of Doubt
Personally, I do not think these positions fully overcome skepticism, as the intermediary picture of perception inevitably gives rise to external world doubts. Representative realism, while promising, invites the veil-of-perception argument: if experiences are mere representations, how can we know they accurately reflect reality without independent verification? This echoes Descartes’ evil demon hypothesis, where intermediaries could be deceptive (Descartes, 1641). Phenomenalism fares worse, reducing everything to subjective phenomena, arguably heightening solipsistic skepticism. Direct realism, by denying intermediaries, overlooks perceptual errors, leaving it vulnerable to the same issues. The core problem lies in the early modern inheritance: conceiving experiences as screens between subject and world creates an epistemic gap, fostering skepticism by demanding justification across that divide. Indeed, this model, as manifest in Locke and others, assumes a dualism that prioritizes internal mental states, making external knowledge inferential and thus uncertain (Locke, 1689). Therefore, skepticism persists unless we abandon this picture altogether, perhaps through contemporary externalist approaches.
Conclusion
In summary, BonJour critiques phenomenalism for its regress and lack of objectivity, champions representative realism for its causal grounding, and rejects direct realism as non-alternative. However, these views do not fully dispel skepticism due to the intermediary model’s inherent dualism, which perpetuates doubts about external knowledge. This analysis underscores epistemology’s enduring challenges, suggesting a need for paradigms beyond early modern assumptions to secure knowledge claims. As a philosophy student, engaging with these ideas reveals the complexity of perception and belief justification.
References
- BonJour, L. (2010) Epistemology: Classic Problems and Contemporary Responses. 2nd edn. Rowman & Littlefield Publishers.
- Descartes, R. (1641) Meditations on First Philosophy. Translated by J. Cottingham (1996). Cambridge University Press.
- Hume, D. (1739) A Treatise of Human Nature. Edited by D. F. Norton and M. J. Norton (2000). Oxford University Press.
- Locke, J. (1689) An Essay Concerning Human Understanding. Edited by P. H. Nidditch (1975). Clarendon Press.
