"Artificial Life" - читать интересную книгу автора (Sterling Bruce)

learning, the possession of a genetic program, the expression of that
program through a physical body. "Life" is a thing that *does,* not a
thing that *is* -- life extracts energy from the environment, grows,
repairs damage, reproduces.

And this network of processes called "Life" can be picked apart,
and studied, and mathematically modelled, and simulated with
computers, and experimented upon -- outside of any creature's living
body.

"Artificial Life" is a very young field of study. The use of this
term dates back only to 1987, when it was used to describe a
conference in Los Alamos New Mexico on "the synthesis and
simulation of living systems." Artificial Life as a discipline is
saturated by computer-modelling, computer-science, and cybernetics.
It's conceptually similar to the earlier field of study called "Artificial
Intelligence." Artificial Intelligence hoped to extract the basic logical
structure of intelligence, to make computers "think." Artificial Life, by
contrast, hopes to make computers only about as "smart" as an ant --
but as "alive" as a swarming anthill.

Artificial Life as a discipline uses the computer as its primary
scientific instrument. Like telescopes and microscopes before them,
computers are making previously invisible aspects of the world
apparent to the human eye. Computers today are shedding light on
the activity of complex systems, on new physical principles such as
"emergent behavior," "chaos," and "self-organization."

For millennia, "Life" has been one of the greatest of
metaphysical and scientific mysteries, but now a few novel and
tentative computerized probes have been stuck into the fog. The
results have already proved highly intriguing.

Can a computer or a robot be alive? Can an entity which only
exists as a digital simulation be "alive"? If it looks like a duck, quacks
like a duck, waddles like a duck, but it in fact takes the form of pixels
on a supercomputer screen -- is it a duck? And if it's not a duck, then
what on earth is it? What exactly does a thing have to do and be
before we say it's "alive"?

It's surprisingly difficult to decide when something is "alive."
There's never been a definition of "life," whether scientific,
metaphysical, or theological, that has ever really worked. Life is not
a clean either/or proposition. Life comes on a kind of scale,
apparently, a kind of continuum -- maybe even, potentially, *several
different kinds of continuum.*

One might take a pragmatic, laundry-list approach to defining
life. To be "living," a thing must grow. Move. Reproduce. React to
its environment. Take in energy, excrete waste. Nourish itself, die,