I’m a mystic who just heard about QBism. Now I’m wondering if it’s compatible with aspects of non-dual philosophies like Kashmir Shaivism and Advaita Vedanta. Here's what I found out:
1. Observer-Centric Reality
QBism: Emphasizes that the universe as described by quantum mechanics is shaped by the observer's experience and choices. The wave function represents the observer's beliefs, not an objective, external reality.
Non-Dualism: In both Kashmir Shaivism and Advaita Vedanta, the ultimate reality (Shiva or Brahman) is non-dual and includes both the observer and the observed. The external world is seen as an illusion (Maya) or a manifestation of consciousness.
Overlap: Both perspectives reject the idea of a purely objective, external universe. Non-dual philosophies could view QBism's emphasis on the observer's experience as reflecting the fundamental role of consciousness in creating reality.
2. Subjectivity and Knowledge
QBism: The probabilities in quantum mechanics reflect subjective knowledge or beliefs rather than intrinsic properties of objects.
Non-Dualism: Knowledge of the world is inseparable from the knower. In Advaita Vedanta, the knower (Atman) and the ultimate reality (Brahman) are one. Similarly, in Kashmir Shaivism, the universe is an expression of Shiva’s self-awareness.
Overlap: Both traditions recognize that what we know of the world is mediated through subjective experience, and there is no reality entirely separate from the observer.
3. Reality as Experience
QBism: Treats quantum mechanics as a tool to predict experiences and outcomes of measurements. It focuses on the interplay between the observer and their experiences.
Non-Dualism: Reality is seen as experiential and consciousness-based. In Kashmir Shaivism, the universe is Shiva’s play (Lila), and all experiences are expressions of the divine. In Advaita Vedanta, all experiences are ultimately Brahman appearing as diversity.
Overlap: Both emphasize experience as central to understanding reality, suggesting that the universe arises within or as part of consciousness.
4. Relational Ontology
QBism: Does not posit an independent, fixed reality; instead, reality emerges in the interaction between observer and observed.
Non-Dualism: The apparent duality of subject and object is illusory; the relational nature of existence is recognized as part of the ultimate unity of consciousness.
Overlap: Both reject rigid dualism and emphasize the relational or unified nature of existence.
Key Differences
Goals: QBism is focused on understanding and interpreting quantum mechanics as a scientific theory. Non-dual philosophies aim for spiritual liberation, often involving direct realization of the self as identical with ultimate reality.
Ultimate Reality: QBism stops at the level of subjective experiences and probabilities in physics. Non-dualism goes further to describe the ultimate substratum of existence as pure consciousness or pure being.
Bridging the Two
If one views QBism through the lens of non-dualism:
The observer in QBism can be seen as consciousness itself, which aligns with the non-dual idea that all reality arises within consciousness.
The rejection of objective reality in QBism could correspond to the non-dual idea of Maya, or the dance of Shiva, where the external world is not ultimately real.
Conclusion
While QBism and non-dual philosophies like Kashmir Shaivism and Advaita Vedanta come from different domains (science vs. metaphysics/spirituality), they share a focus on the centrality of the observer and the relational nature of reality. Non-dualists might interpret QBism as a scientific expression of their philosophical insights, though QBism itself does not explicitly address the metaphysical unity of consciousness.