file:///F|/rah/James%20P.%20Hogan/Hogan,%20James%20P%20-%20Code%20Of%20The%20Lifemaker.txt
With defects and deficiencies of every description appearing somewhere or
other, it was inevitable that some of the organisms would exhibit partial
or total communications breakdowns. Factory Seventy-three, built without
radio facilities, was started up by programs carried overland from
Sixty-six. None of its robots ever used anything but backup mode, and the
factories that it spawned continued the tradition. But this very fact meant
that their operating ranges were extended dramatically.
So the "defect" turned out to be not so much of a defect after all.
Foraging parties were able to roam farther afield, greatly enlarging their
catchment areas, and they frequently picked up as prizes one or more of the
territories previously protected by geographical remoteness. Furthermore,
selective pressures steadily improved the autonomy of the robots that
operated in this fashion. The autodirected types, relying on their
comparatively small, local processors, tended to apply simple solutions to
the problems they encountered, but their close-coupled mode of interaction
with their environment meant that the solutions were applied quickly: They
evolved efficient "reflexes." The teledirected types, by contrast, tied to
the larger but remote central computers, were inclined to attempt more
comprehensive and sophisticated solutions, but —as often as not—too late to
do any good. Autodirection thus conferred a behavioral superiority and
gradually asserted itself as the norm, while teledirection declined and
survived only in a few isolated areas.
The periodic instinct to communicate genetic half-subfiles back to their
factories had long become a universal trait among the robots— there could
be descendants only of ancestors who left descendants—and they responded to
the decline of radio as a means of communication by evolving a compulsion
to journey at intervals back to the places whence they had come, to return,
as it were, to their "spawning grounds." But this method of reproduction
had its problems and posed new challenges to the evolutionary process.
The main problem was that an individual could deliver only half its genome
to the factory, after which the Supervisor would have to store the
information away until another robot of the same type as the first happened
to show up with a matching half; only then could the Supervisor pass a
complete copy to its Scheduler. If, as frequently happened, the Supervisor
found itself saturated by a peak workload during the intervening period, it
was quite likely to delete the half-subfile and allocate the memory space
to other, more urgent things—bad news for the Fred that the data had come
from, who would thus have enacted the whole reproductive ritual for
nothing. The successful response to this problem came with the appearance
of a new mode of genetic recombination, which, quite coincidentally, also
provided the solution to an "information crisis" that had begun to restrict
the pool of genetic variation available for competitive selection to draw
on for further improvement.
Some mutant forms of robot knew they were supposed to output their
half-subfiles somewhere, but weren't all that sure, or perhaps weren't too
particular, about what they were supposed to output it into. Anything with
the right electrical connections and compatible internal software was good
enough, which usually meant other robots of the same basic type. And since
a robot that had completed its assigned tasks was in a receptive state to
external reprograming, i.e., ready for fresh input that would normally come
from the factory system, an aspiring donor had little trouble in finding a
cooperative acceptor, provided the approach was made at the right time. So
to begin with, the roles adopted were largely a matter of circumstance and
accidental temperament.
Although the robots' local memories were becoming larger than those
contained in their earlier ancestors, the operating programs were growing
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