Where do we end, and what is the self? You cut off your arm, you're still yourself. You cut off two of your arms, you're still yourself. You cut off your arms and your legs, you're still yourself, right? Also, the idea of the self seems to be embedded right around here, right around the eyes. Infants know to look at the eyes.

I like filmmakers that try to touch upon the metaphysical, the things that are behind all this, that you can't actually physically interact with, but are somehow intuitively there. Maybe you can see the ashes of that fire or the echoes of something happening on a domain not-here, whether that be coincidence, whether that be familiarity with somebody who's a stranger.

We are morphing as we go through things, and then we're presented with the notion of a soul. A soul implies more than just the preservation of energy. Science will tell you that you can explode a person, but their energy still exists - even if they're decimated, the universe will preserve that in the form of heat or whatever it is. So there's a preservation of our molecules or whatever, but is there a preservation of a thing that's called the self if that thing is not actually ever one thing?

My two older brothers are both molecular biologists and neuroscientists, and I feel like representing them accurately is never done in movies, and I really wanted to at least capture the spirit of a Ph.D. student whose goal and aspiration is to increase the sum total of human knowledge. That is noble. That was really, really important, to capture the three-dimensionality of scientists. Scientists fall in love, scientists have the greatest sense of humor, scientists are passionate.

Where do we end, and what is the self? You cut off your arm, you're still yourself. You cut off two of your arms, you're still yourself. You cut off your arms and your legs, you're still yourself, right? Also, the idea of the self seems to be embedded right around here, right around the eyes. Infants know to look at the eyes.