I don't know how the turtles follow rules of pursuit, proximity, and
avoidance without being control systems, perhaps they are. I don't think
Papert was aware of McPhail or Powers.
(I didn't send earlier news of Papert's mishap, supposing that no-one in
this group was aware of Papert. A clear symmetry of unawareness there,
but one or both sides of it may be only in my imagination.)
I never actually played with Logo
<http://en.wikipedia.org/wiki/Logo_programming_language>, was tempted
when I ran across it at BBN in the 1980s, but finishing the doctorate
took up discretionary time for play projects.
I don't know how the turtles follow rules of pursuit, proximity, and
avoidance without being control systems, perhaps they are.
I don't think they are in themselves. But I imagine they could be proogrammed to be. Just a guess. I've never programmed Logo myself, either.
I don't think
Papert was aware of McPhail or Powers.
But he did work with J.G.Taylor, and contributed a mathematical chapter to Jim's 1962 book "The Behavioural basis of Perception", which is not control theory, but is based on a feedback model. I wouldn't be at all surprised if he later came to appreciate the control implications.
I first heard of this on the xbbn list (for former BBN employees).
Here's the latest, received yesterday from Ted Baker (now at the MIT
Plasma Science and Fusion Center):
"""""""""""""""""""""""""""" begin quote """"""""""""""""""""""""""""""
I just heard from Seymour's brother Alan (through a mutual friend) that:
"Seymour is now deemed stable enough to be moved to Boston. The present
plan is to fly him in on a Swiss hospital plane due to land at Logan at
2 pm on Saturday."
···
-----Original Message-----
From: Control Systems Group Network (CSGnet)
[mailto:CSGNET@LISTSERV.UIUC.EDU] On Behalf Of Martin Taylor
Sent: Sunday, December 17, 2006 5:05 PM
To: CSGNET@LISTSERV.UIUC.EDU
Subject: Re: Papert and crowds
[Martin Taylor 2006.12.17.17.00]
[Bruce Nevin 2006.12.17 15:21 EST]
I don't know how the turtles follow rules of pursuit, proximity, and
avoidance without being control systems, perhaps they are.
I don't think they are in themselves. But I imagine they could be
proogrammed to be. Just a guess. I've never programmed Logo myself,
either.
I don't think
Papert was aware of McPhail or Powers.
But he did work with J.G.Taylor, and contributed a mathematical chapter
to Jim's 1962 book "The Behavioural basis of Perception", which is not
control theory, but is based on a feedback model. I wouldn't be at all
surprised if he later came to appreciate the control implications.