That [and this] whole space [of considerations, here] appears to be fraught with circularities like this:
Step 1. Draw a distinction between consciousness and meta-consciousness.
Step 2. "From what vantage point, and with what 'machinery' do we make a distinction?"
Step 3. Go back to Step 1.
> .. that our ability to think about the issue is constrained by our language.
I think I agree, otherwise I'm tempted to think that we would have already arrived, trivially, at some clearer kind of agreement about it.