...proves that measurement is everything. At the quantum level, reality does not exist if you are not looking at it.
But realism about abstracta has the same problem. See, realism's problem is epistemic, inasmuch as realists have never been able to provide a convincing story about how our particular, concrete minds manage to get ahold of abstracta. — Pneumenon
I also suspect nominalism played a hand in the development of the mind-body dualism, and later (eliminative) materialism. Under nominalism, abstract entities are but "thoughts" that have no correlate to anything. They exist in the mind, and only in the mind. — darthbarracuda
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