Thursday, August 28, 2014

Helliconia Summer, Brian Aldiss

Helliconia Summer by Brian W. Aldiss is the second in the Helliconia trilogy.

Started: April 5, 2013
Completed: August 28, 2014
Recommendation: This is an interesting trilogy and I can recommend the trilogy to those who aren't wed to characters as each book in the trilogy has hundreds of years between them
Recommended By:    Nobody

Words I looked up:

keratinous -- composed of or resembling keratin; horny
queme -- comely, attractive
scumber -- to void excrement
tatterdemalion -- ragged or disreputable in appearance.
tesserae -- one of the small squares of stone or glass used in making mosaic patterns
traduce -- speak badly of or tell lies about (someone) so as to damage their reputation

Review:

In the "Long Summer" of this binary star system the advantage turns to man and the overall question of whether men should pursue an all-out effort to kill all phagors comes to the fore.  The issue finds different adherents among different religions, in different locations, on Earth, and on the monitoring satellite (about which much more is discovered).  The mild expose and largely damning study of the effects of religion continue, but there is an even-handed component to it as well when one member of an otherwise atheist group comes to realize the value and comfort of religion.  The irony of this trilogy being an allegory is delicious and a much better understanding of the science behind the conflict between man and phagor is exposed.  This is not an "easy" beach read, but it is a well composed, thoughtful examination.

Friday, August 22, 2014

Lingua ex machina, William Calvin and Derek Bickerton

Lingua ex Machina:  Reconciling Darwin and Chomsky with the Human Brain by William Calvin and Derek Bickerton caught me with the title.  My mother hated Chomsky and I've had mixed interest in his analysis of language.  I've long been interested, however, in figuring out how language works and couldn't let this one go by.

Started:  4/4/2013
Completed: 8/21/2014
Recommendation: Hard to recommend, this book is tough reading.  If you have a strong interest in linguistics and neurology, maybe.
Recommended By: Nobody

Words I looked Up:
bricolage -- construction or creation from a diverse range of available things.
exapted -- the utilization of a structure or feature for a function other than that for which it was developed through natural selection.
preprandial -- done or taken before dinner or lunch
reification -- regarding something abstract as a material thing.
reification fallacy -- within the context of the book, I think this refers to a concept developed by Alfred North Whitehead called "fallacy of misplaced concreteness" which is a huge tangential concept not really necessary to understanding of the book or what the author is trying to say.

Margin Notes:

"So it's very clear that the correct identification of things in the world--correct in terms of the consequences we predict from them, rather than in any sense of absolute truth--is adaptive, in the evolutionary sense of the term"
NOTE:  Thinking of words in terms of consequences merits a level of abstraction that a word should not start with, I think.

"For the moment, let's just say that words represent something, somehow."
NOTE:  Since words are tied to communication maybe the representation is a communal agreement?

"However, it's clear the brain must represent words somehow, or we couldn't talk."
NOTE:  It is impossible to talk without words, but I don't like the assertion that the word must be stored in the brain in order to talk as a multifaceted concept.  It seems hard to believe that a child creates a concept internally that handles both forms of the orange.  Maybe words link or interact with each other to develop meaning.

"While there aren't objects in the brain, like those in the compartments of the left-luggage office, there are ensembles of neurons that effectively represent objects, analogies, and the other bricolage of our mental life."
NOTE:  I think this is an assertion, not a fact.  I'm unsure of research into brain injury that shows this. Need to research.

"Precision is accomplished with large committees redundantly trying to do the same task; precision is often an emergent property of enough imprecise neurons."
NOTE:  This assertion needs a reference.  How would a series of imprecise neurons generate precision?  This is explained later in the book but a forward reference would help the reader understand that this is an assertion that will be demonstrated to be true.  I find the later arguments compelling, although I think that they fall short of proof.

"Relationships are far more abstract than objects themselves, and there are often layer upon layer of abstractions in our metaphors, undoubtedly aided by syntax's structuring."
NOTE:  According to p.15 this is a "word" when coupled with p. 16.

"And the association must not trigger an automatic response, or be limited to a single kind of response."
NOTE:  This is the distinguisher.

"That's certainly one of the most crucial differences between words and animal calls."
NOTE:  Does this imply a symmetric relationship?  Animal calls that do not create an immediate response are words?

"Creole languages come into existence when parents who speak a structureless early-stage pidgin pass it on to their children."
NOTE:  Is this true?  Renee Apel in "Language Contact and Bilingualism" argues that some Creole languages borrow from other existing languages (Haitian Creole would be an example of a Creole derived from French) which flies in the face of this assertion.  It may not be important, however, that all Creole languages come into existence the way the authors describe, but that some do (this form of growth of a Creole language is referred to as a bio-programme).

"Rather than acquiring a vague general capacity to 'seek structure'--how would any creature do that?..."
NOTE:  How is that different from emergent pattern matching?

"There is an enormous overlap with oral-facial and hand-arm sequencing, for example, suggesting that improvements in one might have benefited the others, at least at some stage in hominid evolution."
NOTE:  Maybe why some need to gesture in order to talk?  The argument is later expanded to include the concept of gesturing while talking (particularly in Italy).

"...but each verb has one or more obligatory attributes."
NOTE:  Is this a restatement of the "argument structure"?

I had so many notes that I stopped tracking them on this blog.

Review:

This book is formatted as an exchange of letters between the two authors who are from two distinct disciplines.  The minute I started reading this book, I regretted letting it languish on the shelf for so many years.  On the other hand, as the discussion progressed it became clear that this was as much an exploration for the authors as a coherent statement of how language had developed.  The authors actively disagree, but take common areas (or arguments conceded for the value of progress) and carry them out to further analysis.  Huge bulks of the book appear to be outright speculation (not uninformed speculation, but speculation none-the-less).  There is an extensive argument about whether or not language came as a side-effect of the gathering life style or the hunting life style.  To me, this is moot--it had a place in each.  Oddly the one making the argument for the gathering life style was the same who argued that parsing of sentences was co-opted from the ability to throw accurately (there was likely some back and forth play between the two capabilities resulting in each enhancing the other).  The discussion of proto-language was fascinating.

The facade of the book as a collection of letters became wearing as the book progressed.  Each interjected into the other's chapters disrupting the flow to highlight alternative positions.  While there is tremendous value in this, it also hampers understanding as it is necessary to put down and pick up a complex argument repeatedly.  The effort to link Chompsky's progressing (as they wrote) analysis with archaeology undergoing new discoveries and neurology getting better at refining our understanding of the brain was daunting.  Kudos to these two scientists who reached across disciplines to try and formulate a comprehensive understanding of how language works.

Having read "From Eternity to Here" recently and seen how dissatisfied the author was with the simply plausible argument, I can see how far this argument has to go.  For all I know, it has continued to progress well beyond what was presented in the book.  Having said all of that, the basic structure of the argument is laid out in rather good detail.  It is laid out on a layman's level for the most part.  Sure, there is plenty of learning as you go (the key concept would be that of a Darwin Machine), but there are enough analogies and cross-references for the apt reader to come to an understanding of the argument.  This is not a beach read, but if you have an interest in language and particularly human language acquisition this is a book well worth the time.  If none of that interests you, you will yawn and yawn and yawn...

Friday, August 15, 2014

From Eternity to Here, Sean Carroll

From Eternity to Here:  The quest for the ultimate theory of time by Sean Carroll is a quest to understand the meaning of time.  Perhaps in more detail, why time seems to move in one direction when conventional physics allows it to move in either direction.

Started: 5/3/2014
Completed: 8/15/2014
Recommendation: Good read, but you have to like physics
Recommended By:  I read a review of this book in Science News and decided to put it on my reading list.

Words I researched:

heterodox -- Not conforming with orthodox standards or beliefs

Review:

What an excellent discussion of time (and black holes).  I learned a ton about de Sitter space and spent way too much time trying to figure out what it must be like inside and near a black hole (just a side effect of considering entropy and information loss).  So, if you don't find physics and cosmology concepts daunting, this book presents a pretty good series of arguments for why time currently moves in one direction associated with entropy.

Unfortunately, thinking about black holes left me with these questions:

1)      I know that a black hole has an Event Horizon.  I understand that the Event Horizon marks where the escape speed exceeds the speed of light in a vacuum, “c,” but I’m wondering about the force of gravity inside the black hole approaching the singularity.  It strikes me that there might also be a limit as to how fast things can fall into the singularity that would also approach the speed of light.  What happens when the force of gravity would accelerate a given mass above the speed of light as the mass approaches the singularity of a sufficiently large black hole?
a.       My guess is that the mass being accelerated would start converting to energy as it approaches the speed of light which would reduce the speed at which the mass was being accelerated (the acceleration due to gravity depends on the mass of the object being so accelerated, correct?).  The impact, to my way of thinking is that a black hole of sufficient size would convert all the mass coming into it into energy.  Does that sound right or have I lost track of something important?  If so, does that mean something for the force of gravity at the black hole?  Would incoming mass being reduced to energy mean that the black hole would no longer accumulate mass (since incoming mass was converted to energy)?  Would it be possible to see the a fluctuation in the Event Horizon as the mass becomes energy?
2)      If a black hole reduces to a singularity, then it seems to me that the singularity itself would be smaller than a Plank length (or at a minimum small enough to fall within the dimensions of a virtual particle).  If so, I’m thinking that would make the singularity subject to a time-energy uncertainty relation constantly.  If so, wouldn’t that cause constant gravitational shock waves inside the black hole which would be observable externally as fluctuations in the Event Horizon (as the singularity undergoes a state change)?
a.       My guess is that it would, but that these shock waves would either be so small or happen so quickly that they would not be detectible (maybe the fluctuations would, by definition be within some application of the Heisenberg Uncertainty principal?) outside or at the Event Horizon.  If they were discernable, then the black hole would “leak” information in an unpredictable way that would effectively generate entropy.  Or, have I assumed too much and there is a glaring error in one of the “if so” extensions above?
b.      A corollary to this would be that momentum would not necessarily be conserved (since the black hole is within the Heisenberg Uncertainty Space), so if momentum of the black hole was randomly changing, a black hole might have a certain “bounce” to it.  Again, however, I think that would create some kind of gravitational shock waves that would propagate through to the Event Horizon.
3)      Finally, when thinking about black holes in general, I stumbled across anti-de Sitter space.  In the book, Sean Carroll points out that the Maldecena correspondence suggests that actions in our universe can be explained by a 5-dimensional anti-de Sitter space.  Has someone suggested that the fifth dimension in that space could be gravity itself?  It seems to me that if a 5-dimensional space can map into a 4-dimensional space that doesn’t include gravity, then the missing dimension is gravity.  I have to assume that I’m not the first to posit that.  Do you know of anywhere I could read more about that possibility?