"We became Homo sapiens not that long ago, from the scientific perspective, and we've retained a lot of our beast nature. We've done all these amazing things in terms of our knowledge base and technology, and now we're flying around and using the internet. But we're still very animalistic. So, I think about hierarchies. I think about evolution. I think about how we stack up, how we sit on top of each other. How we pray that we know what we're up to."