This is also true when conversing with other humans.

You can talk about your own spark of life, your own center of experience and you'll never get a glimpse of what it is for me.

At a certain level, thing you're looking at is a biological machine that can be described with constituents so it's completely valid you assume you're the center of experience and I'm merely empty, robotic, dead.

We might build systems that will talk about their own point of view, yet we will know we had no ability to materialize that space into bits or atoms or physics or universe. So from our perspective, this machine is not alive, it's just getting inputs and producing outputs, yet it might very well be that the robot will act from the immaterial space into which all of its stimuli appear.