Eighth: you are real, and we both know that because we are both you
I certainly don't know you're something real out there.
And yet, if you knew I'm real, I should probably know you are.
So, no, sorry, I don't buy that.
Sure. I also remember it didn't make sense talking of your consciousness as being me.
I accept that different people's consciousnesses, at least their "bare consciousnesses", or "minimal consciousnesses", are likely identical. But that doesn't mean there is necessarily just one, unique, consciousness, for all of us.
And even if there is just one for all of us, there's no good reason to use "me" to refer to it since we use "me" to refer to our own self, not to our bare consciousness, which is not even something we normally talk about.
EB