It is the year 2100. In the year 2090, World War III began. In the year 2095, a biological weapon that destroys the human immune system only was released and used by both sides in the war. As a result, human beings have become extinct. The beautiful parks that the people of the early 21st century worked so hard to build and protect are now enjoyed by no one but the squirrels and birds that live there. At the entrance of the biggest, most beautiful park of all, there is a golden plaque that reads as follows: “This park is dedicated with love to our future grandchildren. We worked very hard and made many sacrifices, knowing that you would one day appreciate having this green space to enjoy.” Of course, the “future grandchildren” referred to in this plaque were never born, because there parents all died in World War III. Was it still worth the effort? Should the people of the 21st century have put there effort toward preventing WWIII instead? Should we be thinking about our future grandchildren now?