(November 1, 2016 at 3:29 pm)Cthulhu Dreaming Wrote: You don't know that you're not a brain-in-a-vat. Solipsism is both a logically unassailable position to take, and a completely useless one, so it is taken as axiomatic that our experience of reality is a rough approximation of what is real. It's not practically unassailable, however - because of it's uselessness.
When someone appeals to solipsism, it's time to point and laugh.
For that matter, whenever someone tries to say that one can't justify one's own sense of reality or one's use of reason without acknowledging the existence of a deity that was lifted from the Canaanites, it's also time to point and laugh.
I'd rather chew broken glass than get dragged into a sophistry marathon with a presuppositionalist. Protestantism is where philosophy goes to die.
