This episode talks about an alternative model of evolution based upon the notions of matter derived from quantum physics rather than classical physics. In classical physics, a particle established continuity between successive states, but in quantum physics there are successive states but no continuity. The episode discusses how in Vedic philosophy this continuity is established by the presence of the soul due to which even though the bodies are changing through birth, childhood, youth, and old age, the soul remains the same. Also, unlike classical physics where only one state is possible and real at a given time, in quantum physics all the states are possible but only one state becomes real. So, when these material states are understood as different kinds of bodies, then all the bodies are possible at all times but only some bodies become real at a given time. It follows that the species are not evolving into other species. Rather, the soul is evolving through the various species. The episode goes on to discuss three definitions of the species in Vedic philosophy, and how they appear in language as first, second, and third-person experiences. Modern science only studies third-person experience and therefore body is also defined only in terms of third-person properties. But in Vedic philosophy, the body is additionally described in terms of first- and second-person experiences and properties.