I saw an article about some
people who recently put a worm's brain into a Lego robot and watched as the
robot acted like the worm without programming. Turns out it wasn’t quite that cool. I guess I fell for some
click-bait, but it was still pretty cool, and the idea does bring up some deep
questions.
What actually was done, is all
the neural networks within the one millimeter long nematode worm were replicated
virtually. They chose this particular worm for its simplicity, with only 302
neural connections comparing to a human brain’s many trillion. Its neurons were
replicated via an object oriented program, using UDP to send messages in a way
that very closely mimicked that of the communication within the brain. This
program was then dumped into a lego robot, and connected properly to sensors and
motors so it could react accordingly to proper stimuli.
It turns out it worked. What
does that mean exactly? When this simulated neural network was put into the
robot and turned on, the robot started acting like the worm. It responded like
the worm was observed to react to the equivalent stimuli. It would detect walls
and turn away from them, and if it detected food it would move toward it. These
functions seem rather trivial, and wouldn’t be hard to program into a machine,
but the point of it was it wasn’t
programmed. No additional behavioral programming was added on top of the
mimicked neural network. The behavior came solely from the ‘brain’.
This virtual neural network,
known as the connectome, is being transferred to a Raspberry Pi and a
self-contained Pi robot is being built. The idea is this kind of application
would have use as a mobile sensor, to explore an environment and report back
results. If a far more complicated neural network could be replicated, and an
appropriate robot built, an incredibly effective mobile sensor, like suggested,
could likely be built, without the need for any AI programming.
As the article (linked below)
expresses, this brings up some philosophical questions. Is the robot a nematode
worm in a different body, or something entirely different? Is it truly alive?
These questions are trivial in this particular case, but if this connectome can
be expanded to replicate much larger and more complex animal’s neural networks,
these questions will carry a lot more weight.
Do you think it would be
possible to get to the point to replicate a human’s neural network? It sounds
like something out of science fiction. In fact it indeed is something out of science fiction. Creative AI created by
mimicking the neural network of the human brain isn’t a new idea. If this is
the beginning of that reality though, what do you think will be found? Do you
think a person is just the sum of his or her neural networks, or something
more? The answer may be different for humans vs. other animals, or it may not
be. But the mere thought of finding out is rather haunting, to be honest.
source:
http://www.i-programmer.info/news/105-artificial-intelligence/7985-a-worms-mind-in-a-lego-body.html
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