Is nature discrete or continuous? Is the universe infinite or finite? Is life inevitable, or is it a lucky accident? Will we ever find company in the cosmos? Is the truth of the world to be found in the ways things change, like the river that you cannot step into twice, or the ways they remain the same, like the law of gravity or, indeed, the name of that river? I could go on all day. Feel free to write in with your own. A final answer to any of these questions would be a landmark of human progress. But it might be in the nature of being human that … Continue reading Dennis Overbye