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Book Club: Scientific Metaphysics, 3, Scientific vs speculative ontology
What exists, and how do we know it? The first is the fundamental question of ontology, a major branch of metaphysics. The second question is epistemological, but it is obviously crucial for the first one: without good epistemic reasons any ontological claim becomes as arbitrary as those of religion. According to Paul Humphreys, the author of the third chapter of Scientific Metaphysics, there are two contrasting ways to carry out ontological inquiries: a scientific and a speculative one. The first is characteristic of philosophy of science, the second of analytic metaphysics. The second, he contends, should be abandoned entirely.
[The first essay in this series can be found here; the second one here.]
Humphreys reminds us that criticism of analytic metaphysics has a long history in philosophy. The logical positivists, famously, wanted to get rid of the field altogether, suggesting that metaphysical statements, being non verifiable, are literally meaningless. They failed, because it turns out that some non verifiable statements are perfectly meaningful. For instance: unicorns have guts. There is no way to verify such statement since unicorns don’t exist. But you understand perfectly well what I meant by writing that sentence.
