"Then why don’t you?" said Susan. "What stops you?"

"Public reaction if something goes wrong!"

"Use volunteers, then."

"That won’t help. Quantum Pharmaceuticals couldn’t take the adverse publicity if something went wrong."

Susan looked at them mockingly. " Are you two working on your own, then?"

Anderson raised his hand to stop Kupfer. "Young woman, " he said, "let me explain briefly in order to put an end to wasteful verbal fencing. If we succeed, we will be enormously rewarded. If we fail, Quantum Pharmaceuticals will disown us and we will pay what penalty there is to be paid, such as the ending of our careers. If you ask us, why we are willing to take this risk, the answer is, we do not think a risk exists. We are reasonably sure we will succeed; entirely sure we will do no harm. The corporation feels it cannot take the chance; but we feel we can. Now, Kupfer, proceed!"

Kupfer said, "We have a memory chemical. It works with every animal we have tried. Their learning ability improves amazingly. It should work on human beings, too."

John said, "That sounds exciting."

"It is exciting," said Kupfer. "Memory is not improved by devising a way for the brain to store information more efficiently. All our studies show that the brain stores almost unlimited numbers of items perfectly and permanently. The difficulty lies in recall. How many times have you had a name at the tip of your tongue and couldn’t get it? How many times have you failed to come up with something you knew you knew, and then did come up with it two hours later when you were thinking about something else. Am I putting it correctly, David?"

"You are," said Anderson. "Recall is inhibited, we think, because the mammalian brain outraced its needs by developing a too-perfect recording system. A mammal stores more bits of information than it needs or is capable of using and if all of it was on tap at all times, it would never be able to choose among them quickly enough for appropriate reaction. Recall is inhibited, therefore, to insure that items emerge from memory storage in manipulable numbers, and with those items most desired not blurred by the accompaniment of numerous other items of no interest.

"There is a definite chemical in the brain that functions as a recall inhibitor, and we have a chemical that neutralizes the inhibitor. We call it a disinhibitor, and as far as we have been able to ascertain the matter, it has no deleterious side effects."

Susan laughed. "I see what’s coming, Johnny. You can leave now, gentlemen. You just said that recall is inhibited to allow mammals to react more efficiently, and now you say that the disinhibitor has no deleterious side effects. Surely the disinhibitor will make the mammals react less efficiently; perhaps find themselves unable to react at all. And now you are going to propose that you try it on Johnny and see if you reduce him to catatonic immobility or not."

Anderson rose, his thin lips quivering. He took a few rapid strides to the far end of the room and back. When he sat down, he was composed and smiling. "In the first place, Miss Collins, it’s a matter of dosage. We told you that the experimental animals all displayed enhanced learning ability. Naturally, we didn’t eliminate the inhibitor entirely; we merely suppressed it in part. Secondly, we have reason to think the human brain can handle complete disinhibition. It is much larger than the brain of any animal we have tested and we all know its incomparable capacity for abstract thought.

"It is a brain designed for perfect recall, but the blind forces of evolution have not managed to remove the inhibiting chemical which, after all, was designed for and inherited from the lower animals."

"Are you sure?" asked John.

"You can’t be sure," said Susan, flatly.

Kupfer said, "We are sure, but we need the proof to convince others. That’s why we have to try a human being."

"John, in fact," said Susan. "Yes."

"Which brings us," said Susan, "to the key question. Why John?"

"Well," said Kupfer, slowly, "we need someone for whom chances of success are most nearly certain, and in whom it would be most demonstrable. We don’t want someone so low in mental capacity that we must use dangerously large doses of the disinhibitor; nor do we want someone so bright that the effect will not be sufficiently noticeable. We need someone who’s average. Fortunately, we have the full physical and psychological profiles of all the employees at Quantum and in this and, in fact, all other ways, Mr. Heath is ideal."

"Dead average?" said Susan.

John looked stricken at the use of the phrase he had thought his own innermost, and disgraceful, secret. "Come on, now," he said.

Ignoring John’s outcry, Kupfer answered Susan, "Yes."

"And he won’t be, if he submits to treatment?"

Anderson’s lips stretched into another one of his cheerless smiles. "That’s right. He won’t be. This is something to think about if you’re going to be married soon – the firm of Johnny and Sue, I think you called it. As it is, I don’t think the firm will advance at Quantum, Miss Collins, for although Heath is a good and reliable employee he is, as you say, dead average. If he takes the disinhibitor, however, he will become a remarkable person and move upward with astonishing speed. Consider what that will mean to the firm."

"What does the firm have to lose?" asked Susan, grimly.

Anderson said, "I don’t see how you can lose anything. It will be a sensible dose which can be administered at the laboratories tomorrow – Sunday. We will have the floor to ourselves; we will keep him under surveillance for a few hours. It is certain nothing could go wrong. If I could tell you of our painstaking experimentation and of our thoroughgoing exploration of all possible side effects – "

"On animals," said Susan, not giving an inch.

But John said, tightly, "I’ll make the decision, Sue. I’ve had it up to here with that dead-average bit. It’s worth some risk to me if it means getting off that dead-average dead end."

"Johnny," said Susan, "don’t jump."

"I’m thinking of the firm, Sue. I want to contribute my share."

Anderson said, "Good, but sleep on it. We will leave two copies of an agreement we will ask you to look over and sign. Please don’t show it to anybody whether you sign or not. We will be here tomorrow morning again to take you to the laboratory."

They smiled, rose, and left.

John read over the agreement with a troubled frown, then looked up. "You don’t think I should be doing this, do you, Sue?"

"It worries me, sure,"

"Look, if I have a chance to get away from that dead average – "

Susan said, "What’s wrong with that? I’ve met so many nuts and cranks in my short life that I welcome a nice, average guy like you, Johnny. Listen, I’m dead average too."

"You dead average. With your looks? Your figure?"

Susan looked down upon herself with a touch of complacency. "Well, then, I’m just your dead-average gorgeous girl," she said.

The injection took place at 8 A.M. Sunday, no more than twelve hours after the proposition had been advanced. A thoroughly computerized body sensor was attached to John in a dozen places, while Susan watched with keen-eyed apprehension.

Kupfer said, "Please, Heath, relax. All is going well, but tension speeds the heart rate, raises the blood pressure, and skews our results."

"How can I relax?" muttered John.

Susan put in sharply, "Skews the results to the point where you don’t know what’s going on?"

"No, no," said Anderson. "Boris said all is going well and it is. It is just that our animals were always sedated before the injection, and we did not feel sedation would have been appropriate in this case. So if we can’t have sedation, we must expect tension. Just breathe slowly and do your best to minimize it."