This is one of those questions that bothers me. Not the question itself, just the fact that we don't know, and likely can't know.

Is there some test to prove if something has "consciousness"? Without such a test I don't think we can know what it really is. You might propose having the thing explain the feeling to you, but I could just program a computer to do the same thing (theoretically).

I have no way of knowing whether or not anyone else besides myself experiences this thing called consciousness.

You all could be perfectly designed robots that are tricking me into believing you're also humans who experience consciousness.