Earth and the future of civilization · Chapter 13

Consider the responsibility of speaking for Earth

Chapter 13 of the original book translates the knowledge gained from the cosmos into decisions for Earth. The concluding question about the risk of nuclear war and the sustainability of civilization does not end with simply observing the grandeur of the universe.

Preserving and verifying knowledge, creating a society where different people can coexist, and ensuring the continuity of the environment we depend on – these are all factors that determine the future of our planet.

OBSERVE · Start with evidence

Three pieces of evidence

The ability to handle technology and the wisdom to responsibly manage its consequences do not automatically grow together.
Libraries, education, and the freedom to ask questions are the conditions that connect knowledge across generations.
The 1990 Voyager images of Earth are an epilogue added to the original book in 1980.

Who will speak for the future of Earth?

Commentary following nuclear war and the continuity of civilization in chapter 13 of the original book. The linked account of humanitarian effects is later context; this is not a numerical simulation predicting the outcome of nuclear war.

Do the size of technology and the maturity of judgment grow together?

A civilization capable of sending probes to distant planets could also destroy the conditions of its own existence with the same knowledge. Separating technological advancement towards space from responsibility on Earth makes the final question of the original book seem like a sentimental addition.

In this chapter, consider what can be created and what should be done. While accurate scientific explanations are necessary to understand the consequences of choices, they do not automatically determine who to prioritize or what risks to accept.

Questions to ConsiderWhat if you were to participate in evaluating new technologies?

Damage extends beyond a single location and moment.

The ICRC considers not only the immediate damage following the use of nuclear weapons, but also the effects of radiation, the destruction of infrastructure, and the long-term humanitarian and environmental consequences. When considering these impacts, it is impossible to limit the scope to only the directly affected area.

Instead of calculating victory and defeat based on numbers, broaden the scope to include who participates in the decision-making process and who bears the consequences. Even unborn individuals, people outside of national borders, and those without the power to change the decision can be affected.

Questions to ConsiderWhat additional information would you include when recording the impact of a decision?

The act of recording and questioning is a fundamental condition of civilization.

The journey of understanding Earth's responsibility does not end with a grand declaration. The ability to review information, to correct errors, and to listen to each other's perspectives are the foundations that allow a civilization to think deeply.

The initial shadow and the final Earth are connected at this point. Because the observations were made public and the assumptions were revealed, others were able to continue the calculations. Now, consider your own choices and provide them with a basis and limitations, so that the next person can understand them. Leaving space for other opinions is part of this record.

Questions to ConsiderWhat would I add to my conclusion?

Discoveries and their limits

There is no single answer for a machine to grade. End the journey by explaining what matters to you, where it conflicts with other values, and what you can do.

Identify the values you want to protect, the other people you should consider, and the evidence that could change your judgment.

Explore this chapter ↗

Evidence and further reading

Let's return to the first question. Just as small observations expanded the world, what will small choices leave behind for the next person?