If things emerged from a spaceship which we could not be sure were machines or conscious beings, what we were wondering about would have an answer even if the things were so different from anything we were familiar with that we could never discover it. It would depend on whether there was something it was like to be them, not on whether behavioral similarities warranted our saying so. ... [W]e need ... to ask whether experience is present in [the] alien thing[s], ... whether there is something it is like to be them, and ... the answer to that question is what determines whether they are conscious.