Ella S.
Well-Known Member
Sorry, I know this is not addressed to me but I'd like to answer.
a) sometimes dreams can be very realistic so that during the dream it is indistinguishable from everyday life.
b) If you cannot distinguish being awake from dreaming then it is possible you are dreaming now.
c) If you cannot eliminate the possibility that you are dreaming now, then you don’t know for certain that you are not dreaming now.
It doesn't matter until it matters.
We might as well accept the universe as it appears to be until we know that it is not.
As long as everything remains consistent in the universe according to how we would expect the universe to be, there is no reason to think it is not real.
IOW, I don't need faith in this but I can trust that things will continue to work as if the universe is real until I have reason to think otherwise.
Yes, thank you. There's a reason there's a division between "a posteriori" knowledge and "a priori" knowledge. When we say we know the external world exists, we're talking about a justified belief in accordance with the evidence.
Logic itself is self-correcting, so in the face of new information and argumentation our beliefs should shift. Inductive conclusions are not absolute, but they are the best explanations we have given a certain data set. Just asking, "what if you're wrong, though?" doesn't change that at all. The only way to change conclusions based on evidence is with more evidence.
Speculation becomes useless at this point unless you can turn it into a hypothesis or a model. If the universe isn't real, what would that necessarily entail? What observations would that predict and how do those predictions differ from naturalism?
Of course, the whole point of this speculation is to throw out all evidence entirely and, with it, reason and justification. It's a complete misunderstanding of Descartes's point about the superiority of deductive verification to inductive justification, at best. It's a dangerously anti-intellectual pseudo-philosophy at worst.
ETA: I also don't pride myself on being a "serious student of philosophy," like the previous poster implies. I simply try to live in accordance with logic. Part of that includes Rationalism and analytical philosophy, in my opinion, but I am not an academic philosopher.
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