Reminds me of Moore's "here is a hand" paradox (or one man's modus tollens is another's modus ponens).
Richard Carrier on solipsism, but not nearly as pithy:
...Solipsism still requires an explanation for what you are cognating. There are only two logically possible explanations: random chance, or design.
It’s easy to show that the probability that your stream of consciousness is a product of random chance is absurdly low (see Bolzmann brains, for example). In simple form, if we assume no prior knowledge or assumptions (other than logic and our raw uninterpreted experience), the prior probability of solipsism becomes 0.5 but the likelihood of the evidence on s
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