Faith in Space

If one uses logic, one should want to understand the universe and its logic. This is the framework’s answer to a fact about humans that Chapter Three respected and this chapter completes: people rarely abandon a belief system, even one proved faulty, unless something they identify with more stands ready to replace it. Those who value the open question of what comes next must be given an option without dogma if they are ever to set the dogma down.

The story qualifies on size. Render the universe’s 13.8 billion years at a billion to one — one year per billion — and single cells arrived four years ago, multicellular life six months ago; the dinosaurs died three weeks ago, our ancestors split off three days ago and became human fifty minutes ago; agriculture is five minutes old, the pyramids three, the industrial revolution six seconds — and the population explosion, the internet, and the first steps off the planet all happened in the last second. A species one second into its story, already leaving the nursery. And the nursery, it turns out, is not unique: water, with its strange and life-suiting properties, exists in vast quantities throughout the universe, and every year’s astronomy lengthens the list of worlds sitting in the balance of factors where life could arise. Whatever caused the big bang remains genuinely unknown — the open question stays open, exactly as Chapter Three left it — and the search itself becomes the thing sought. With enough understanding of the past life stops being fate. Species restored or made resilient, materials that unmake our waste, climate answered with engineering The forward duty is the sentence this book has been carrying since Chapter Nineteen, and it is the coldest sentence in the warmest chapter: until there is a self-sufficient population beyond this planet, humanity’s survival is not assured. Worlds have been reset before; the dinosaurs’ three-weeks-ago is the fossil record’s way of saying no backups. Going to space is not escape from an earth given up on. It is insurance on everything every chapter of this book has tried to protect: the whole experiment of understanding, carried somewhere the next accident cannot reach.