On Tue, Sep 21, 2004 at 11:24:03AM -0400, Ben Goertzel wrote:

> Messing with robots is a pain!  Good robotic hardware is expensive, and

Yes, but they work in realtime, and don't take any resources to render the
reality -- of any complexity. There are standard platforms, too, which are
cheap.

> requires significant effort to maintain, especially for those of us with
> limited hardware-engineering expertise.  I've done a bit of hands-on

So buy a kit.

> robotics work in the past, so I've learned this the hard way.  Furthermore,
> for a team of programmers distributed across various physical locations,
> working with physical robots would seem to require a separate robot at each
> physical location, or else a robot at a single site with a full-time
> robot-maintaner onsite and excellent videoconferencing type facilities so
> all the distributed team members can  see the robot....  Furthermore, if one
> decides one needs to change around ones sensors and actuators for some
> reason, it can be very time-consuming and expensive to do so...
> 
> On the other hand, a sim-world is a lot cheaper to build, a lot easier to
> maintain, and can be used in a collaborative way by a distributed
> development team.  And it's easy to change around if one's ideas change....

Despite http://darwin2k.com/ and game engines, it's hard to get physics
right.

> I do find it interesting to think about how to translate complex sensor-data
> into cognitive information.  I have a lot of ideas about how to do this
> using Novamente.  But I have a feeling that one can get an AGI working
> without giving it highly rich sensory inputs or highly flexible actuators.

Strange, I have the exactly opposite feeling. Making sense from noisy,
ambiguous data is what intelligence is all about. Abstract reasoning is a
recent invention, and mounted upon that ancient chassis.

> However, this is really a separate issue from the sim-world versus robot
> issue, because one could implement a physical robot with simple sensors &
> actuators, or one could implement a sim-world with very rich sensors and
> actuators.

You can buy a robot. Writing a decent simworld would take a big team, and
budget. It's easier to jack in into an existing online game world. Game AI is
something one should be able to raise money for.
 
> I plan to start with a pretty simple sim-world, and add richer simulated
> sensors & actuators within it only if necessary.  I'm probably only going to
> mess with physical robotics once I have
> 
> a) Novamente working reasonably well for controlling an agent in a simple
> simulated world
> b) funding to pay at least one dedicated robotics person
> 
> Without funding to pay for a dedicated Novamente-sim-world person, I'm
> afraid progress on the sim-world project will be very slow, since it will
> end up being worked on by a bunch of us in "spare time" not being spend on
> other more commercial but less AGI-ish Novamente-based projects.  To try to
> work on a Novamente-robotics project in this kind of part-time way would be
> silly, the rate of progress would effectively be zero.
> 
> -- Ben

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Eugen* Leitl <a href="http://leitl.org";>leitl</a>
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