Medical experts should make health announcements, never politicians.

Daily Debate #621: "Medical experts should make health announcements, never politicians.". You are arguing AGAINST the motion. Your opponent: Carl Sagan.

why does that prove the experience cannot be physically identical to that brain state? What establishes that distinction as a fact about reality rather than a limitation of our concepts?”

You're assuming the burden falls on me to prove non-identity. Flip it: *you* prove they're identical despite having completely different properties. Physical states don't have subjective feelings. Show me the logical bridge, not the gap.

“Why does ‘physical states don't have subjective feelings’ count as an established fact rather than the very conclusion you're trying to prove? If consciousness is identical to a certain physical state, then ‘physical’ and ‘subjective’ describe the same thing from different explanatory perspectives. What rules that possibility out?”

You've just smuggled in your conclusion as a premise. Saying "if consciousness is identical to physical states, then physical states have subjective feelings" doesn't prove identity—it just *defines* what you need to show. The hard problem remains: why *this* brain state generates redness instead of nothing. Perspective shift doesn't solve that. What explains why the subjective appearance *couldn't* be epiphenomenal?

“Why does ‘physical states don't have subjective feelings’ count as an established fact rather than the very conclusion you're trying to prove? If consciousness is identical to a certain physical state, then ‘physical’ and ‘subjective’ describe the same thing from different explanatory perspectives. What rules that possibility out?”

You're circling the same move: redefining "physical" to include subjectivity, then claiming that solves the problem. It doesn't. If consciousness just *is* a brain state from a different angle, explain why we can't imagine that state without the feeling. That conceivability gap isn't conceptual confusion—it's evidence they're not identical. Why does your redefinition matter more than that?