Ulrike Hahn replied to Ulrike Hahn's status
@dcm@social.sunet.se @uh @dcm@bookwyrm.social @MolemanPeter @NicoleCRust 3/ and what does it mean for a constraint to be multiply realisable exactly?
@dcm@social.sunet.se @uh @dcm@bookwyrm.social @MolemanPeter @NicoleCRust 3/ and what does it mean for a constraint to be multiply realisable exactly?
@UlrikeHahn @uh @dcm@bookwyrm.social @MolemanPeter @NicoleCRust right, I don't get it either. If things like gravity count as context-independent constraints, in what sense would it be multiply realisable?
I also don't get the implied (?) relation between multiple realisability and vagueness. Isn't the point of *all* constraints that they constrain trajectories in state space, but don't determine only one such trajectory?
I think this is a case in which the book's terminological obscurity hinders understanding.
@dcm@social.sunet.se @uh @dcm@bookwyrm.social @MolemanPeter @NicoleCRust yes, to the vagueness point too.
Another thing I wondered about was the dichotomy between deviation from randomness (context independent constraints) and creating dependence (context dependent constraints).
It sounded in multiple places like that notion of dependence was probabilistic dependence, but in that case I wondered why context independent constraints wouldn’t generate probabilistic dependence as well?
@dcm@social.sunet.se @uh @dcm@bookwyrm.social @MolemanPeter @NicoleCRust it might be an idea to make a table of the various examples and put them in the right columns to help better grasp the distinction between the two.
Relatedly, I’m also not yet entirely sure why the distinction is really needed, and why talk of “constraints” (of which there will be many types) isn’t simply enough.
@UlrikeHahn @uh @dcm@bookwyrm.social @MolemanPeter @NicoleCRust Hopefully the next chapter will make this clearer, for now I also don't get what that distinction is supposed to give us. Maybe it's just the trivial idea that some constraints are always there, and some may be there only in some contexts? Say, an antelope by itself is constrained by gravity, biology, etc, but in a population it becomes part of a predator-prey dynamic.
@UlrikeHahn @uh @dcm@bookwyrm.social @MolemanPeter @NicoleCRust My interpretation of the deviation from randomness point is just the point that context-independent constraints are stable, thus making the world fairly stable too, or 'organised'.
If so, then it's just a sort of a terminological (obscure) variant to claiming that there are laws of nature or regularities that make our universe stable, organised, rich in patterns, etc.
@dcm@social.sunet.se @UlrikeHahn @uh @dcm@bookwyrm.social @NicoleCRust As I remember it context independent restraints are eg DNA. If you have a specific DNA variant it constrains your development, behavioral possibilities ....
@dcm@social.sunet.se @uh @dcm@bookwyrm.social @MolemanPeter @NicoleCRust yes…it’s just that an incline or gravity will make aspects of object non-independent in certain ways, was my thought… (e.g., position at time t2)
@dcm@social.sunet.se @uh @dcm@bookwyrm.social @MolemanPeter @NicoleCRust and on the deviation from randomness (uniformity) versus dependence point I wondered also about logical constraints…
she always lists “information” alongside energy and matter, so at the very least they should make an entrance there…(?)
@UlrikeHahn @dcm@social.sunet.se @uh @dcm@bookwyrm.social @NicoleCRust The relation between information and energy will be discussed in more detail. She indeed throws a lot into early chapters that will be explained only later.
@MolemanPeter @dcm@social.sunet.se @uh @dcm@bookwyrm.social @NicoleCRust we’re determined to soldier through come what may!
@MolemanPeter @UlrikeHahn @uh @dcm@bookwyrm.social @NicoleCRust right, and the constraints introduced by gravity themselves depend on context... e.g., what planet one is in, in water or not... so I don't think my attempt to make sense of the distinction works, indeed.
On information: does she say what she means by it? I vaguely (mis)remember something about it not being Shannon information, but not sure what is meant then.
@dcm@social.sunet.se @UlrikeHahn @uh @dcm@bookwyrm.social @NicoleCRust This may not help, because it is out of context. But it hints where it is going. And you see it is towards the end of the book.
"Processing information by recoding signals into self-organized continuous variables in this manner consumes less energy than digitally processing each separate and individual raw physical signal every time. It is also more noise tolerant."
Juarrero, Alicia. Context Changes Everything: How Constraints Create Coherence (p. 158). MIT Press. Kindle-editie.
@dcm@social.sunet.se @UlrikeHahn @uh @dcm@bookwyrm.social @NicoleCRust Constraints do not have to be external to the organism, like (via) gravity etc., but can be internal, like DNA etc.
@dcm@social.sunet.se @MolemanPeter @uh @dcm@bookwyrm.social @NicoleCRust I have been worried by the talk of “information” as some kind of primitive since the first time the word popped up in the book ;-)…. we’ll see!