am speculating on the future of humanity. It is a gross speculation made at a time of my life when I have more important things which should occupy me personally, but I cannot help worrying about something which I cannot change. A wise man said to me in his middle age that he did not worry about things he cannot change. As he became older he changed his mind and did worry about things he could not change.
The progress of humanity is a story that is only part written. We do not know whether the story so far comprises one chapter out of a thousand or a thousand chapters out of a thousand and one chapters. That book needs effort to read and we invest ourselves in what we read, identifying and sympathising; this book needs a greater investment: it involves all of our time and our own lives; it is a question of empathy, not sympathy, as we and those we love live the plot.
We do not know the answer to the question every reader wants to know when picking up a book. Does it have a happy ending?