We can directly measure the thing we call gravity, so in that sense, it is well understood. We even understand it well enough to make predictions about what it will do under which circumstances.
replyWe can't measure consciousness. We can't quantify, or even qualify, what it is. We don't even have a framework to ask a meaningful question, so debating an answer feels premature.
The way we measure gravity is by observing that it behaves how we would expect it to. We don't actually know if this is correct.
replyThe same goes for consciousness, if something behaves how you would expect a conscious thing to behave but you don't know what is causing it can you deny it whilst maintaining that it is reasonable to say the moon has gravity.
Maybe? It certainly behaves like it does but it might not.
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