“It might. And if such an encounter is imminent, all the more reason why we should not be passively waiting. For we are growing passive, Mr. Baley. No new Spacer world has been settled in two and a half centuries. Our worlds are so tame, so delightful, we do not wish to leave them. This world was originally settled, you see, because Earth had grown so unpleasant that the risks and dangers of new and empty worlds seemed preferable by comparison. By the time our fifty Spacer worlds were developed—Solaria last of all—there was no longer any push, any need to move out elsewhere. And Earth itself
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