Either way, what matters is just whether there is a good justification to be found or not, which is a matter completely independent of us and how we originally came by the belief. Parfit commits the genetic fallacy when he asserts that the causal origins “would cast grave doubt on the justifiability of these beliefs.”
From personal experience, this seems to be a crux. Those such as Parfit, Geoffrey in the OP and me previously (sort of) think that this would be a counterargument against robust realism (e.g. premise 1 in my Post), whereas yourself, Vaughn, and most academic realist philosophers would agree with the counter.
From the summarisation on the blog:
From personal experience, this seems to be a crux. Those such as Parfit, Geoffrey in the OP and me previously (sort of) think that this would be a counterargument against robust realism (e.g. premise 1 in my Post), whereas yourself, Vaughn, and most academic realist philosophers would agree with the counter.