The rest, reserving judgment, were watchful and attentive. With the unexpected exception of Thorn, who seemed scarcely to be listening, lost in some strange fatigued abstraction since he had finished making his report.
A still-wavering audience, Clawly decided. What he said now, and how he said it, would count heavily.
He touched a small box. Instantly some tens of thousands of pinpricks of green light twinkled from the World Map.
He said, "The nightmare-frequency for an average night a hundred years ago, as extrapolated from random samplings. Each dot—a bad dream. A dream bad enough to make the dreamer wake in fright."
Again he touched the box. The twinkling pattern changed slightly—there were different clusterings—but the total number of pinpricks seemed not to change.
"The same, for fifty years ago," he said. "Next—forty." Again there was merely a slight alteration in the grouping.
"And now—thirty." This time the total number of pinpricks seemed slightly to increase.
Clawly paused. He said, "I'd like to remind you, gentlemen, that Thorn proved conclusively that his method of sampling was not responsible for any changes in the frequency. He met all the objections you raised—that his subjects were reporting their dreams more fully, that he wasn't switching subjects often enough to avoid cultivating a nightmare-dreaming tendency, and so on."
Once more his hand moved toward the box. "Twenty-five." This time there was no arguing about the increase.