The question “how far should we go to bring back a lost species?” opens a deeper discussion that requires us to consider what kind of world we want now and for the future. In answering, I am considering the world of nature and envisioning the distant future, the one we think of the least. Five or ten thousand years almost encompasses the depth of human history, and we now recognize our actions will impact planetary biodiversity over the next five to ten thousand years. With increasing capability, we are altering the future of life on Earth and are gaining vast new ways of doing so. We must consider what we want going forward.