evolution? both. both. >> so you're saying it's increased? >> absolutely. >> science gives us insight into the how, how the universe works, how particles behave, but it gives zero insight into why. and i mean why are we here? what's the meaning of it all? for some people, religion offers some degree of insight into those very important questions. >> important, and difficult questions the bible forces us to think about like jealousy and rage, and why some come to hate and harm each other. a lesson starkly taught in the story of the first children. the first siblings. cain is a shepherd and able is a farmer. both offer sacrifices to god, but god likes able's better. >> this is about life as we know it. and life as we know it is not fair.