At odd moments during evening strolls through the deserted, snow-covered streets of that tourist town, we thought of a number of new plots, including those of the future Space Mowgli and the future Roadside Picnic.
We kept a journal of our discussions, and the very first entry looks like this:

… A monkey and a tin can. Thirty years after the alien visit, the remains of the junk they left behind are at the center of quests and adventures, investigations and misfortunes. The growth of superstition, a department attempting to assume power through owning the junk, an organization seeking to destroy it (knowledge fallen from the sky is useless and pernicious; any discovery could only lead to evil applications). Prospectors revered as wizards. A decline in the stature of science. Abandoned ecosystems (an almost dead battery), reanimated corpses from a wide variety of time periods…

Interpretations of corpses as cyborgs for investigating earthlings, and of the Sphere—as some kind of bionic device which detects biological currents

Roadside Picnic – AFTERWORD BY BORIS STRUGATSKY
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“Fine, I’ll tell you. But I have to warn you, Richard, that your question falls under the umbrella of a pseudoscience called xenology. Xenology is an unnatural mixture of science fiction and formal logic. At its core is a flawed assumption—that an alien race would be psychologically human.”

“Why flawed?” asked Noonan.

“Because biologists have already been burned attempting to apply human psychology to animals. Earth animals, I note.”

“Just a second,” said Noonan. “That’s totally different. We’re talking about the psychology of intelligent beings.”

“True. And that would be just fine, if we knew what intelligence was.”

“And we don’t?” asked Noonan in surprise.

“Believe it or not, we don’t. We usually proceed from a trivial definition: intelligence is the attribute of man that separates his activity from that of the animals. It’s a kind of attempt to distinguish the master from his dog, who seems to understand everything but can’t speak. However, this trivial definition does lead to wittier ones. They are based on depressing observations of the aforementioned human activity. For example: intelligence is the ability of a living creature to perform pointless or unnatural acts.”

“Yes, that’s us,” agreed Noonan.

“Unfortunately. Or here’s a definition-hypothesis. Intelligence is a complex instinct which hasn’t yet fully matured. The idea is that instinctive activity is always natural and useful. A million years will pass, the instinct will mature, and we will cease making the mistakes which are probably an integral part of intelligence. And then, if anything in the universe changes, we will happily become extinct—again, precisely because we’ve lost the art of making mistakes, that is, trying various things not prescribed by a rigid code.”

“Somehow this all sounds so … demeaning.”

“All right, then here’s another definition—a very lofty and noble one. Intelligence is the ability to harness the powers of the surrounding world without destroying the said world.”

Roadside Picnic – Arkady and Boris Strugatsky
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He had never felt this outside of the Zone, and even in the Zone it had only happened two or three times. Suddenly, he seemed to be in another world. A million smells assaulted him at once—smells that were sharp, sweet, metallic; dangerous, caressing, disturbing; as immense as houses, as tiny as dust particles, as rough as cobblestones, and as delicate and intricate as watch gears. The air turned hard, it appeared to have surfaces, corners, edges, as if space had been filled with huge coarse spheres, polished pyramids, and gigantic prickly crystals, and he was forced to make his way through all this, as if in a dream, pushing through a dark antique shop full of ancient misshapen furniture … This only lasted a moment. He opened his eyes, and everything disappeared. This wasn’t another world—it was his same old world turning an unfamiliar side toward him, revealing it for an instant, then immediately sealing it off, before he even had the chance to investigate.

Roadside Picnic – Arkady and Boris Strugatsky
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