That somewhere there was a boundary to the universe and therefore a boundary to knowledge. There was only so much to be learned, and once we learned that much, that was the end of it. If knowledge was advancing and accumulating, doubling every fifteen years, as was estimated at the time, then it was said that it would not take long, perhaps a few centuries at the most, to reach a point at which the limiting factors of a finite universe would call a halt to any further accumulation of knowledge. The men of that day who supported this kind of thinking went so far as to conjure up exponential curves by which they professed to show at what point scientific and technological knowledge would finally reach an end.”
“But you say,” said Lansing, “that a finite universe no longer is an accepted fact—that it may be infinite.”
“You miss the point,” Andy rumbled. “I am not talking about the finiteness or infiniteness of the universe. I simply used it as an example to refute your charge of pessimism on my part. I was trying to explain that under other situations there were those who at times had voiced their own brands of pessimism.
“What I said to start with was that it would be a blessing should we be forced to undergo some catastrophic event that would cause us to change our thinking and to seek another way of life. For we are running down a dead-end street, and, what is more, we are running at full tilt. When we reach the dead end, we are going to pile up. Then we will come crawling, back down that dead-end street, asking ourselves if there had not been a better way to do it. My point is that now, before we hit that dead-end, we should stop right now and ask ourselves that question…”
Andy kept on rumbling, but now Lansing blanked the rumbling out, hearing it only as a continuous mumble without words.
And this was the man, he thought, to whom he had meant to suggest a weekend hike. If he were to suggest it, more than likely Andy would agree, for this weekend his wife was in Michigan for a visit to her parents. On the hike, most probably, Andy would not be able to keep up the barrage of words and argument such as the barrage in which he was now engaged, but he’d talk; he’d talk unendingly, he would never cease his talk. On a hike an ordinary man would enjoy at least a modicum of peace and quiet, but such would not be the case with Andy. For Andy there was no such thing as peace and quiet; there was only roiling thought.
Lansing had thought, as well, that he might ask Alice Anderson to spend the weekend with him, but that had its drawbacks, too. On the last several occasions he had been with her, it had seemed he could detect in her eyes a glint of marital expectation, and that, should it come to a head, could be as disastrous as Andy’s nonstop talking. So scratch the both of them, he thought. He still could take a drive out into the hills. Or he could hole up in his apartment with the fire, the music and the reading. Perhaps, as well, there were a number of other ways in which to find enjoyment in the weekend. He let Andy’s words come in again. “Have you ever given any thought,” Andy was asking, “to historic crisis points?”
“I don’t believe I ever have,” said Lansing. “History is replete with them,” Andy told him. “And upon them, the sum of them, rests the sort of world we have today. It has occurred to me, at times, that there may be a number of alternate worlds…”
“I’m sure of it,” said Lansing, not caring any longer. His friend’s flight into fantasy had left him far behind. Beyond the window, the lake lay half in shadow; evening was closing in. Staring out the window at the lake, Lansing sensed a wrongness. Without knowing what it was, he knew that something had changed. Then slowly it came to him what it was: Andy had stopped talking.
He turned his headland stared at his friend across the table. Andy was grinning at him. “I got an idea,” he said.