Cerebrum.

by Albert Teichner.

_For thousands of years the big brain served as a master switchboard for the thoughts and emotions of humanity.

Now the central mind was showing signs of decay ... and men went mad._

Ill.u.s.trated by BIRMINGHAM

[Ill.u.s.tration]

The trouble began in a seemingly trivial way. Connor had wanted to speak to Rhoda, his wife, wished himself onto a trunk line and then waited.

"Dallas Shipping here, Mars and points Jupiterward, at your service,"

said a business-is-business, unwifely voice in his mind.

"I was not calling you," he thought back into the line, now also getting a picture, first flat, then properly 3-D and in color. It was a paraNormally luxurious commercial office.

"I am the receptionist at Dallas Shipping," the woman thought back firmly. "You rang and I answered."

"I'm sure I rang right," Connor insisted.

"And I'm sure I know my job," Dallas Shipping answered. "I have received as many as five hundred thought messages a day, some of them highly detailed and technical and--"

"Forget it," snapped Connor. "Let's say I focussed wrong."

He pulled back and twenty seconds later finally had Rhoda on the line.

"Queerest thing happened," he projected. "I just got a wrong party."

"Nothing queer about it," his wife smiled, springing to warm life on his inner eye. "You just weren't concentrating, Connor."

"Don't you hand me that too," he grumbled. "I _know_ I thought on the right line into Central. Haven't I been using the System for sixty years?"

"Exactly--all habit and no attention."

How smugly soothing she was some days! "I think the trouble's in Central itself. The Switcher isn't receiving me clearly."

"Lately I've had some peculiar miscalls myself," Rhoda said nervously.

"But you _can't_ blame Central Switching!"

"Oh, I didn't mean that!" By now he was equally nervous and only too happy to end the conversation. Ordinarily communications were not monitored but if this one had been there could certainly be a slander complaint.

On his way home in the monorail Connor tried to reach his office and had the frightening experience of having his telepathic call refused by Central. Then he refused in turn to accept a call being projected at him, but when an Urgent cla.s.sification was added he had to take it. "For your unfounded slander of Central Switching's functioning," announced the mechanically-synthesized voice, "you are hereby Suspended indefinitely from the telepathic net. From this point on all paraNormal privileges are withdrawn and you will be able to communicate with your fellows only in person or by written message."

Stunned, Connor looked about at his fellow pa.s.sengers. Most of them had their eyes closed and their faces showed the mild little smile which was the outer hallmark of a mind at rest, tuned in to a music channel or some other of the hundreds of entertainment lines available from Central. How much he had taken that for granted just a few minutes ago!

Three men, more shabbily dressed, were unsmilingly reading books. They were fellow pariahs, Suspended for one reason or another from paraNormal privileges. Only the dullest, lowest-paying jobs were available to them while anyone inside the System could have Central read any book and transmit the information directly into his cortex. The shabbiest one of all looked up and his sympathetic glance showed that he had instantly grasped Connor's changed situation.

Connor looked hastily away; he didn't want any sympathy from that kind of 'human' being! Then he shuddered. Wasn't he, himself, now that kind in every way except his ability to admit it?

When he stepped onto the lushly hydroponic platform at the suburban stop the paraNormals, ordinarily friendly, showed that they, too, already realized what had happened. Each pair of suddenly icy eyes went past him as if he were not there at all.

He walked up the turf-covered lane toward his house, feeling hopelessly defeated. How would he manage to maintain a home here in the middle of green and luxuriant beauty? More people than ever were now outside the System for one reason or another and most of these unfortunates were crowded in metropolitan centers which were slumh.e.l.ls to anyone who had known something better.

How could he have been so thoughtless because of a little lapse in Central's mechanism? Now that it was denied him, probably forever, he saw more clearly the essential perfection of the system that had brought order into the chaos following the discovery of universal paraNormal capacities. At first there had been endless interference between minds trying to reach each other while fighting off unwanted calls. Men had even suggested this blessing turned curse be annulled.

The Central Synaptic Computation Receptor and Transmitter System had ended all such negative thinking. For the past century and a half it had neatly routed telepathic transmissions with an efficiency that made ancient telephone exchanges look like Stone Age toys. A mind could instantly exchange information with any other Subscribing mind and still shut itself off through the Central machine if and when it needed privacy. Except, he shuddered once more, if Central put that Urgent rating on a call. Now only Rhoda could get a job to keep them from the inner slumlands.

He turned into his garden and watched Max, the robot, spading in the petunia bed. The chrysanthemums really needed more attention and he was going to think the order to Max when he realized with a new shock that all orders would have to be oral now. He gave up the idea of saying anything and stomped gloomily into the house.

As he hung his jacket in the hall closet he heard Rhoda coming downstairs. "Queer thing happened today," he said with forced cheerfulness, "but we'll manage." He stopped as Rhoda appeared. Her eyes were red and puffed.

"I tried to reach you," she sobbed.

"Oh, you already know. Well, we can manage, you know, honey. You can work two days a week and--"

"You don't understand," she screamed at him. "_I'm_ Suspended too! I tried to tell it I hadn't done anything but it said I was guilty by being a.s.sociated with you."

Stunned, he fell back into a chair. "Not you, too, darling!" He had been getting used to the idea of his own reduced status but this was too brutal. "Tell Central you'll leave me and the guilt will be gone."

"You fool, I did say that and my defense was refused!"

Tears welled in his eyes. Was there no bottom to this horror? "You yourself suggested that?"

"Why shouldn't I?" she cried. "It wasn't my fault at all."

He sat there and tried not to listen as waves of hate rolled over him.

Then the front bell rang and Rhoda answered it.

"I haven't been able to reach you," someone was saying through the door.

It was Sheila Williams who lived just down the lane. "Lately lines seem to get tied up more and more. It's about tonight's game."

Just then Rhoda opened the door and Sheila came to an abrupt halt as she saw her old friend's face. Her expression turned stony and she said, "I wanted you to know the game is off." Then she strode away.

Unbelieving, Rhoda watched her go. "After forty years!" she exclaimed.

She slowly came back to her husband and stared down at him. "Forty years of 'undying' friendship, gone like that!" Her eyes softened a little.

"Maybe I'm wrong, Connor, maybe I said too much through Central myself.

And maybe I'd have acted like Sheila if _they_ had been the ones."

He withdrew his hands from his face. "I've done the same thing to other wretches myself. We'll just have to get used to it somehow. I've enough social credits to hang on here a year anyway."

"Get used to it," she repeated dully. This time there was no denunciation but she had to flee up the stairs to be alone.

He went to the big bay window and, trying to keep his mind blank, watched Max re-spading the petunia bed. He really should go out and tell the robot to stop, he decided, otherwise the same work would be repeated again and again. But he just watched for the next hour as Max kept returning to the far end of the bed and working his way up to the window, nodding mindlessly with each neat twist of his spade attachment.