Complex sentence: A sentient machine needs to be able to see in the way that humans do, and to do this it needs to create an internal 3D visualization of reality, which in turn requires a highly sophisticated'self-complete' mathematical description language.
Split into simpler sentences: A sentient machine needs to be able to see the world in the way that humans do, and to do this it needs to create an internal 3D visualization of reality. This in turn requires a highly sophisticated'self-complete' mathematical description language.