A metallic heart glistens, though it is unclear whether it pictures a beating human organ, or a machine comprised of steel tubes and valves. Song plays up the visual ambiguity common throughout his work to imagine a future where humans cohabit with AI humanoids, and may even be indistinguishable from them to the eye. In such a world, what features would differentiate humans from machines? Their physical organs—a heart pumping blood through the body, a brain, processing instructions from the nervous system, sperm meeting eggs—or something more imperceptible? This painting questions to what extent the human can be reproduced. While its physical system may be replaced with artificial and, potentially, mechanical parts, the unique capacity of humans to develop consciousness, selfhood, memory and history, will ultimately differentiate humans from machines.