SummaryEllis, Jardine and Putnam have argued that the would‐be scientific realist can only avoid being a metaphysical realist by becoming an “internal realist” . While metaphysical realism is unattractive, the approaches to truth offered by Ellis, Jardine and Putnam are quite unacceptable. However, the is no reason to think that one who wishes to be a scientific realist is limited to these two options.

Hilary Putnam; X*—What Is “Realism”?, Proceedings of the Aristotelian Society, Volume 76, Issue 1, 1 June 1976, Pages 177–194, https://doi.org/10.1093/aristotel.

The primary purpose of the paper is to try to prove that it is impossible to write or understand history without making epistemological and ontological assumptions, In particular assumptions about whether physical objects and processes are within or beyond the limits of what can be made empirical or conscious.

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