How does the second passage develop Kaku's idea that humans have become active choreographers of nature?

Answer: by saying that people can now read DNA to understand individual characteristics

In the Michio Kaku's book, Visions, he states that we are continuing to rush ahead. To prove that, he says "In the past decade more scientific knowledge has been created than in all of human history." Since we are so advance, we don't need to be observers "of the dance of Nature". We have moved "from being passive observers of Nature to being active choreographers of Nature." We are no longer discovering, now we are creating. Conserning future predictions Kaku says to listen to "those who create it".