a titanium-silicone hip socket. Her left thumb was totally artificial, though no one could
tell that without careful ultrasonograms. Even some of her nerves had been rewired.
Such things would be true of any Spacer of similar age from any of the fifty Spacer
worlds (no, forty-nine, for now Solaria could no longer be counted).
To make any reference to such things, however, was an ultimate obscenity. The
medical records involved, which had to exist since further treatment might be
necessary, were never revealed for any reason. Surgeons, whose incomes were
considerably higher than those of the Chairman himself, were paid so well, in part,
because they were virtually ostracized from polite society. After all, they knew.
It was all part of the Spacer fixation on long life, on their unwillingness to admit
that old age existed, but Gladia didn’t linger on any analysis of causes. She was
restlessly uneasy in thinking about herself in that connection. If she had a three-
dimensional map of herself with all prosthetic portions, all repairs, marked off in red
against the gray of her natural self, what a general pinkness she would appear to have
from a distance. Or so she imagined.
Her brain, however, was still intact and whole and while that was so, she was
intact and whole, whatever happened to the rest of her body.
Which brought her back to Daneel. Though she had known him for twenty
decades, it was only in the last year that he was hers. When Fastolfe died (his end
hastened, perhaps, by despair), he had willed everything to the city of Eos, which was a
common enough state of affairs. Two items, however, he had left to Gladia (aside from
confirming her in the ownership of her establishment and its robots and other chattels,
together with the grounds thereto appertaining).
One of them had been Daneel.
Gladia asked, “Do you remember everything you have ever committed to memory
over the course of twenty decades, Daneel?”
Daneel said gravely, “I believe so, Madam Gladia. To be sure, if I forgot an item, I
would not know that, for it would have been forgotten and I would not then recall ever
having memorized it.”
“That doesn’t follow at all,” said Gladia. “You might well remember knowing it,
but be unable to think of it at the moment. I have frequently had something at the tip of
my tongue, so to speak, and been unable to retrieve it.”
Daneel said, “I do not understand, madam. If I knew something, surely it would
be there when I needed it.”
“Perfect retrieval?” They were walking slowly toward the house.
“Merely retrieval, madam. I am designed so.”
“For how much longer?”
“I do not understand, madam.”
“I mean, how much will your brain hold? With a little over twenty decades of
accumulated memories, how much longer can it go on?”
“I do not know, madam. As yet I feel no difficulty.”
“You might not--until you suddenly discover you can remember no more.”
Daneel seemed thoughtful for a moment. “That may be so, madam.”
“You know, Daneel, not all your memories are equally important. “
“I cannot judge among them, madam.”
“Others can. It would be perfectly possible to clean out your brain, Daneel, and
then, under supervision, refill it with its important memory content only--say, ten
percent of the whole. You would then be able to continue for centuries longer than you
would otherwise. With repeated treatment of this sort, you could go on indefinitely. It is
an expensive procedure, of course, but I would not cavil at that. You’d be worth it.”
“Would I be consulted on the matter, madam? Would I be asked to agree to such
treatment?”
“Of course. I would not order you in a matter like that. It would be a betrayal of
Dr. Fastolfe’s trust.”