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the fifty-foot elevation resumed, this time motionless. “Properly programmed, the computer can direct a traveling focus and follow the dizzy loops of a particular planetary locale, as it is doing now, and provide a steady image. It’s a pretty fine adjustment, but that’s what the machinery is for. At least we know the necessary compensations.”
    “And you don’t know the motions of planets the regular telescopes can’t pick up. But you should be able to figure them out soon enough from the—”
    “We can’t even
find
those planets, Ivo. It’s the old needle-in-haystack problem. Do you have any proper idea how many stars and how much dust there is in the galaxy? We can’t begin to use our vaunted definition until we know exactly where to focus it. It would take us years of educated searching to spot any significant proportion of the planets beyond our own system, and there’s such a demand for time on this instrument that we can’t afford to waste it that way.”
    “Um. I remember when I dropped a penny in an overgrown lot. I knew where it was, within ten feet, but I had to catch a bus in five minutes. Don’t think I’ve ever been so mad and frustrated since!” His fingers felt the coin in his pocket again: he had missed the bus but found the penny, and he still had it.
    “Make that penny a bee-bee shot, and that lot the Sahara desert, and instead of a bus, a jet-plane strafing you, and you have a suggestion of the picture.”
    “
Now
who’s using violent imagery? I’ll buy the bee-bee and the desert — but the jet fighter?”
    “I’ll get to that pretty soon. That’s why we need Schön. Anyway, we’d need thousands of macroscopes to afford that type of exploration, and even this one is precariously funded. There’s more important research afoot.”
    “More important than geology, when the Earth’s resources are terminal? Than the secrets of the universe? Than questing into space in the hope that somewhere there is intelligent life; than the possible verification that we are not unique in the universe, not alone?” He paused, abruptly making a quite different connection. “Brad, you don’t mean there’s political interference?”
    “There is, and it’s serious, but I wasn’t thinking of that. Sure, we can snoop out military secrets and get the dirt on public figures — but we don’t. I admit I picked up a dandy shot of a starlet taking a shower once, and you’d be surprised what goes on in the average suburban family situation at the right hour. But aside from the ethics of it, this is picayune stuff. It would be ridiculous to try to spy on the antics of three billion people with this thing, for the same reason we can’t try to map the planets of the galaxy. Be like using the H-bomb to drive out bedbugs. No, we’re thinking big: interstellar communication.”
    Ivo felt a cold thrill. “You
have
made alien contact! How far away are they? What about the time delay? Do they — ?”
    Brad’s smile was bright under the goggles. “Ease off, lad. I didn’t say we’d made contact, I said we were thinking of it, and we haven’t forgotten the time-delay problem for a moment.” His hands began to play upon the controls. “I have hinted at some of the problems of routine exploration and charting, but we do have techniques that are nonroutine. Time delay or no, we have a pretty good notion of the criteria of life as we know it, and — well, look.”
    The screen became a frame around an alien landscape. In the foreground rose a gnarled treelike trunk of yellow hue and grotesque convolution. Behind it were reddish shrubs whose stems resembled twisted noodles dipped in glue. The sky was light blue, with several fluffy white clouds, but Ivo was certain this was not Earth. There was an alienness about it that both fascinated him and grated upon his sensibilities, though he could not honestly identify anything extraordinary apart from the vegetation.
    “All right,” he said at last. “What