otherwise, to destroy oneself; the rising cost of weaponry could do that quite nicely. Since disarmament negotiations had been unsuccessful for decades, the moon project seemed the only solution. Every nation could feel it was powerful militarily because of its moon arsenal, but it had no way of knowing how its arsenal compared with those of the other nations. Since no one therefore could count on victory, no one would risk going to war.
The Achilles heel of this solution lay in the monitoring of it. The experts knew from the start that the first thing the programmers of each country would try to do is send to the moon machines capable of neutralizing the monitoring system. Not necessarily by attacking the surveillance satellites directly; it could be a more devious method, one more difficult to detect, such as invading the communication network and falsifying the data transmitted to Earth and the Lunar Agency. My memory of this seemed intact, so I felt calmer as I boarded the plane with Tarantoga. Settling into my seat, I again took to probing what I remembered.
Everyone understood that the peace depended on the monitoring, so the question was how to make the monitoring untouchable. An insoluble problem, it seemed, a regressus ad infinitum: One could devise a system to monitor a monitoring system, but that system itself would be vulnerable to attack, so one would have to monitor the monitor of the monitor, and so on, without end. But this dilemma was solved quite simply. They encircled the moon with two surveillance belts. The inner belt guarded the sectors; the outer belt guarded the inner belt. And the trick was: both would be independent of Earth. Thus the arms race could continue on the moon in total secrecy from all countries and all governments. The weapons would evolve, but the surveillance of them would remain unchanged for a hundred years. The whole thing, really, was quite absurd. An unknown arsenal was useless in politics. They should have simply disarmed without bringing the moon into it, but there was no mention of that possibility. Everyone knew where talk of disarmament led: nowhere. In any case, when the idea of demilitarizing Earth and militarizing the moon was accepted, it was clear that sooner or later an attempt would be made to violate the doctrine of ignorance. The newspapers from time to time ran stories under screaming headlines about surveillance machines that vanished upon detecting something; some said they were intercepted by satellites and captured. And governments accused each other of sending probes, but it was impossible to tell their origin because an electronic device is not a person: you can’t get anything out of it if it’s made properly. But then these anonymous scouts, these space spies, stopped appearing. And the human race sighed with relief, especially because of the economics, the fact that the moon weapons didn’t cost a cent now. The energy was furnished by the sun, the raw materials by the moon. Which should also help limit the evolution of weapons, because there are no lodes of metal on the moon.
The generals had expressed the concern that weapons adapted to lunar conditions might not work on Earth. I couldn’t recall how the gravity was increased, though they must have explained that to me at the LA. Tarantoga and I were flying BOAC. The night outside the windows was Stygian, and I thought, amused, that I had no idea where we were going. Should I ask Tarantoga? On the other hand, perhaps it would be better if we were to part company. In this awful situation, perhaps I should be silent and fend for myself. A good thing It couldn’t read my thoughts. As if I carried an enemy in my head, though of course it was no enemy.
The reason the Lunar Agency, a supranational organization set up by the UN, turned to me? Its double-guard system had worked too well We knew that the borders between the sectors had not been disturbed, but that was all we knew. In certain nervous,