Re: [FRIAM] FRIAM and causality

2007-11-16 Thread Günther Greindl
Hi, That is cause-effect are > not chains. They're not total orders. They're not linear or > sequential. Every effect has multiple (usually a dense infinity) > causes. And every cause has multiple (usually a dense infinity) of > effects. And the causes and effects are inextricably intertwin

Re: [FRIAM] FRIAM and causality

2007-11-16 Thread Günther Greindl
Hi Glen, > I suspect the "orderability" only requires partial orders rather than > total orders. yes, but relativity implies locality - that means all causes for A and all effects of A would have to be in the past/future light cone. So for the causality at point A you would have total ordering.

Re: [FRIAM] FRIAM and causality

2007-11-16 Thread Glen E. P. Ropella
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Günther Greindl on 11/16/2007 12:30 PM: >> I suspect the "orderability" only requires partial orders rather than >> total orders. > > yes, but relativity implies locality - that means all causes for A and > all effects of A would have to be in the pa

Re: [FRIAM] FRIAM and causality

2007-11-16 Thread Marcus G. Daniels
Glen E. P. Ropella wrote: > Granted, one can hyper-focus some observation so as to artificially > label some slice of the situation and call that slice the unit "A". > But, that's an act of either description or prescription and is merely a > _model_ of the situation (often an impoverished one at t

Re: [FRIAM] FRIAM and causality

2007-11-16 Thread Glen E. P. Ropella
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Marcus G. Daniels on 11/16/2007 02:04 PM: > So we make the model better by using a larger/different network of > interactions instead of a (misplaced) slice, and try again! > Then on to the next problem... Well, sure. But, my comment was about Nick'

Re: [FRIAM] FRIAM and causality

2007-11-16 Thread Phil Henshaw
NIck, Didn't you place the only things that physcally cause anything, the individual hammers and the individual nails in the direct action of driving a nail, in the place of the 'unreal' in you argument?The things that don't actually exist except in our minds, the categories of hammers and of n

Re: [FRIAM] FRIAM and causality

2007-11-16 Thread Nicholas Thompson
Phil, OK. So, it's images all the way down, so we cant get any traction there. I suppose one might argue that a single hammering and a pattern of hammerings (if you will) exist at different levels of organization, and you might prefer one level to another for some reason external to this arg

Re: [FRIAM] FRIAM and causality

2007-11-16 Thread Marcus G. Daniels
Glen E. P. Ropella wrote: > I don't imply that approximations cannot be obtained by taking various > slices of X {x1, ..., xn} and Y {y1, ..., ym} and examining the > sub-inference from xi -> yj. But, there will always be room for > skepticism that your particular slices adequately capture the cau

Re: [FRIAM] FRIAM and causality

2007-11-16 Thread Glen E. P. Ropella
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Marcus G. Daniels on 11/16/2007 04:35 PM: > A model either gives an edge on prediction or it doesn't. It is > quantifiable provided there is consensus on the available variety of > available input and output measurements and many such measurements.