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	<title>Comments on: Humanity isn&#039;t, it becomes</title>
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		<title>By: pconroy</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47051</link>
		<dc:creator>pconroy</dc:creator>
		<pubDate>Thu, 27 Sep 2012 16:16:53 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47051</guid>
		<description>@52 Eurologist,

Agree that the role of language in the framing of thought is overplayed - but then the people who do this are usually those in the media, who &quot;think verbally&quot; and are poor at other forms of thinking.

For instance ideas or theories about ancient admixture events and migrations come to me easily, because I dream in maps. I&#039;m a cartophile and much of my thinking is in the visuo-spatial range. I will literally wake up sometimes and find myself looking over a vast map of peoples and places...</description>
		<content:encoded><![CDATA[<p>@52 Eurologist,</p>
<p>Agree that the role of language in the framing of thought is overplayed &#8211; but then the people who do this are usually those in the media, who &#8220;think verbally&#8221; and are poor at other forms of thinking.</p>
<p>For instance ideas or theories about ancient admixture events and migrations come to me easily, because I dream in maps. I&#8217;m a cartophile and much of my thinking is in the visuo-spatial range. I will literally wake up sometimes and find myself looking over a vast map of peoples and places&#8230;</p>
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		<title>By: Eurologist</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47050</link>
		<dc:creator>Eurologist</dc:creator>
		<pubDate>Wed, 26 Sep 2012 11:34:49 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47050</guid>
		<description>@12

People think differently about the role of language - in part because of how they perceive their own thinking.

From when I was a child, I have always been confused by the emphasis on the role of language, since all of my more compelling thoughts seem to develop outside of it, and I often struggle finding language to express them.  There are to-me-clear concepts and relations but they may not correspond to immediately obvious words or linguistic ideas/expressions (but perhaps to related ones in other fields - which would explain a lot of internal borrowing in linguistics, like using musical terms for engineering, etc.).

So, from my (admittedly rather naive) vantage point, complex language evolved to be able to express preexisting complex, personally understood concepts, relations, and processes - not the other way &#039;round.

In fact, I like &quot;known concepts,&quot; because to me they are real-existing things/thoughts that other people put the work into to label and describe them so now they have a word.  ;)

Of course, in a highly evolved society, these things tend to back-feed and work hand-in-hand.   Expressed differently, to me, language is the cart, preexisting thoughts and ideas are the horse/oxen.</description>
		<content:encoded><![CDATA[<p>@12</p>
<p>People think differently about the role of language &#8211; in part because of how they perceive their own thinking.</p>
<p>From when I was a child, I have always been confused by the emphasis on the role of language, since all of my more compelling thoughts seem to develop outside of it, and I often struggle finding language to express them.  There are to-me-clear concepts and relations but they may not correspond to immediately obvious words or linguistic ideas/expressions (but perhaps to related ones in other fields &#8211; which would explain a lot of internal borrowing in linguistics, like using musical terms for engineering, etc.).</p>
<p>So, from my (admittedly rather naive) vantage point, complex language evolved to be able to express preexisting complex, personally understood concepts, relations, and processes &#8211; not the other way &#8217;round.</p>
<p>In fact, I like &#8220;known concepts,&#8221; because to me they are real-existing things/thoughts that other people put the work into to label and describe them so now they have a word.  <img src='http://blogs.discovermagazine.com/gnxp/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> </p>
<p>Of course, in a highly evolved society, these things tend to back-feed and work hand-in-hand.   Expressed differently, to me, language is the cart, preexisting thoughts and ideas are the horse/oxen.</p>
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		<title>By: Naveen</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47049</link>
		<dc:creator>Naveen</dc:creator>
		<pubDate>Wed, 26 Sep 2012 07:08:34 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47049</guid>
		<description>Science has been a great tool for humanity and major part of it is the use of analytical thinking and the accompanying reductionist approach is for the major part successful but trying to subdivide things and classifying further and further has become an epidemic in people&#039;s way of thinking, we think we humans are all the same some of the time and then we rapidly classify and subdivide, a typical persons thinking might go like this (assuming I am typical on which I am basing my conclusions) &quot; oh I am only gonna support the efforts of the democrats as they have all the good policies &quot; &quot;this religions principles seem more right&quot; and then from thinking about the world as a whole we focus on individual countries then states then our favorite town and rally behind our fav football team, then our families and then to the most part whether this is beneficial for me or not for the most part, we should probably start thinking in holistic terms I guess ...maybe then we will avoid saying things about this or that what constitutes humanity and humans...and our criterias might be a bit more accommodating</description>
		<content:encoded><![CDATA[<p>Science has been a great tool for humanity and major part of it is the use of analytical thinking and the accompanying reductionist approach is for the major part successful but trying to subdivide things and classifying further and further has become an epidemic in people&#8217;s way of thinking, we think we humans are all the same some of the time and then we rapidly classify and subdivide, a typical persons thinking might go like this (assuming I am typical on which I am basing my conclusions) &#8221; oh I am only gonna support the efforts of the democrats as they have all the good policies &#8221; &#8220;this religions principles seem more right&#8221; and then from thinking about the world as a whole we focus on individual countries then states then our favorite town and rally behind our fav football team, then our families and then to the most part whether this is beneficial for me or not for the most part, we should probably start thinking in holistic terms I guess &#8230;maybe then we will avoid saying things about this or that what constitutes humanity and humans&#8230;and our criterias might be a bit more accommodating</p>
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		<title>By: pconroy</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47048</link>
		<dc:creator>pconroy</dc:creator>
		<pubDate>Tue, 25 Sep 2012 15:46:32 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47048</guid>
		<description>@46, Tim,

Well the &quot;first fully conscious individual&quot; - as defined by Jaynes - lived much later than the invention of writing, and in a sense Schizophrenics behave like they are NOT fully conscious. Indeed I would extend the analogy and say that anyone whose life is &quot;guided&quot; by a God like voice offering advice/rebuke in not fully conscious.

@44, T,

Don&#039;t believe everything you hear on NPR - I know 2 broadcasters there, who are well meaning, but have imbibed too much left-liberal koolaid and not enough science for them to have opinions worthy of being broadcast, especially in the realm of science.
As regards skulls becamming smaller and less robust, IMO,  after cooking with fire was available, as huge jaws/mandibles and their muscles attached to the head were no longer necessary, and the bones became smaller and less thick, and the shape changed.
As regards smaller brains; first large brains - think Neanderthal and possibly Denisovan - were, based on a recent paper, a result of hominins living in Northern latitudes, with low light levels and hunting, where more visual cortex for signal processing is required to process images of animals. This is not the case at more tropical locations, where light is good year round. So brains becomming smaller, IMO, could be the result of 2 processes:
1. Colonization by peoples evolved at lower latitudes - who possessed smaller brains
2. Evolution of more executive function in the human brain, with a corresponding division of labor between the hemispheres - so you get localized specialization and a better optimization of command and control in the brain - therefore needing less brain volume to accomplish the same tasks.</description>
		<content:encoded><![CDATA[<p>@46, Tim,</p>
<p>Well the &#8220;first fully conscious individual&#8221; &#8211; as defined by Jaynes &#8211; lived much later than the invention of writing, and in a sense Schizophrenics behave like they are NOT fully conscious. Indeed I would extend the analogy and say that anyone whose life is &#8220;guided&#8221; by a God like voice offering advice/rebuke in not fully conscious.</p>
<p>@44, T,</p>
<p>Don&#8217;t believe everything you hear on NPR &#8211; I know 2 broadcasters there, who are well meaning, but have imbibed too much left-liberal koolaid and not enough science for them to have opinions worthy of being broadcast, especially in the realm of science.<br />
As regards skulls becamming smaller and less robust, IMO,  after cooking with fire was available, as huge jaws/mandibles and their muscles attached to the head were no longer necessary, and the bones became smaller and less thick, and the shape changed.<br />
As regards smaller brains; first large brains &#8211; think Neanderthal and possibly Denisovan &#8211; were, based on a recent paper, a result of hominins living in Northern latitudes, with low light levels and hunting, where more visual cortex for signal processing is required to process images of animals. This is not the case at more tropical locations, where light is good year round. So brains becomming smaller, IMO, could be the result of 2 processes:<br />
1. Colonization by peoples evolved at lower latitudes &#8211; who possessed smaller brains<br />
2. Evolution of more executive function in the human brain, with a corresponding division of labor between the hemispheres &#8211; so you get localized specialization and a better optimization of command and control in the brain &#8211; therefore needing less brain volume to accomplish the same tasks.</p>
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		<title>By: chris y</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47047</link>
		<dc:creator>chris y</dc:creator>
		<pubDate>Tue, 25 Sep 2012 13:24:36 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47047</guid>
		<description>&lt;i&gt;Of course, if the slave-owners had had their way, slaves would have counted as a full-person for calculating representation in Congress; the three fifths rule was actually an anti-slavery measure.&lt;/i&gt;

Probably not. If slaves had counted as full persons for purposes of representation, they&#039;d have had to count as full persons for tax purposes too.</description>
		<content:encoded><![CDATA[<p><i>Of course, if the slave-owners had had their way, slaves would have counted as a full-person for calculating representation in Congress; the three fifths rule was actually an anti-slavery measure.</i></p>
<p>Probably not. If slaves had counted as full persons for purposes of representation, they&#8217;d have had to count as full persons for tax purposes too.</p>
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		<title>By: Tim</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47046</link>
		<dc:creator>Tim</dc:creator>
		<pubDate>Tue, 25 Sep 2012 06:43:16 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47046</guid>
		<description>Dear God, that&#039;s a brutally bleak outlook and a disturbingly plausible one.</description>
		<content:encoded><![CDATA[<p>Dear God, that&#8217;s a brutally bleak outlook and a disturbingly plausible one.</p>
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		<title>By: Razib Khan</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47045</link>
		<dc:creator>Razib Khan</dc:creator>
		<pubDate>Tue, 25 Sep 2012 06:24:23 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47045</guid>
		<description>#46, perhaps behavioral modernity took so long because the first conscious people kept committing suicide?</description>
		<content:encoded><![CDATA[<p>#46, perhaps behavioral modernity took so long because the first conscious people kept committing suicide?</p>
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		<title>By: Tim</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47044</link>
		<dc:creator>Tim</dc:creator>
		<pubDate>Tue, 25 Sep 2012 06:15:01 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47044</guid>
		<description>&quot; Razib Khan: #2, who do you think you are, yahweh?&quot;

No, but I do think it&#039;s likely that the H. heidelbergensis LCA for Moderns, Neanderthals and Denisovans was cognitively advanced enough to warrant the label of person.

I can&#039;t help but wonder what it would have been like to be that first fully conscious individual. It must have been a bizarre and lonely experience.</description>
		<content:encoded><![CDATA[<p>&#8221; Razib Khan: #2, who do you think you are, yahweh?&#8221;</p>
<p>No, but I do think it&#8217;s likely that the H. heidelbergensis LCA for Moderns, Neanderthals and Denisovans was cognitively advanced enough to warrant the label of person.</p>
<p>I can&#8217;t help but wonder what it would have been like to be that first fully conscious individual. It must have been a bizarre and lonely experience.</p>
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		<title>By: Anthony</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47043</link>
		<dc:creator>Anthony</dc:creator>
		<pubDate>Tue, 25 Sep 2012 05:18:49 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47043</guid>
		<description>Seth @ 39 - pconroy @32 seems to answer your question in advance. Vocal mimicry has evolved a number of times in the animal kingdom; surely parrots didn&#039;t develop it in order to be fed by humans who thought it amusing. Once the range of sounds which can be mimicked is large enough, phonemes can exist. The rest is mental, not laryngeal.</description>
		<content:encoded><![CDATA[<p>Seth @ 39 &#8211; pconroy @32 seems to answer your question in advance. Vocal mimicry has evolved a number of times in the animal kingdom; surely parrots didn&#8217;t develop it in order to be fed by humans who thought it amusing. Once the range of sounds which can be mimicked is large enough, phonemes can exist. The rest is mental, not laryngeal.</p>
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		<title>By: T</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47042</link>
		<dc:creator>T</dc:creator>
		<pubDate>Tue, 25 Sep 2012 04:37:21 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47042</guid>
		<description>I&#039;m seeing a lot of pro-modern human bias.  We know that modern humans were more fit, but that just means that they had more surviving offspring.  There are many possible reasons why modern humans were more fit, and they aren&#039;t all noble sounding like &quot;our ancestors were much smarter and could talk&quot;.  Modern humans had smaller skulls than some of their rivals, and modern human skulls have been shrinking over time.

http://www.npr.org/2011/01/02/132591244/our-brains-are-shrinking-are-we-getting-dumber

quote: &quot;A smaller brain is the signature of selection against aggression,&quot;

I think that &quot;the event&quot; was that humans became domesticated (by each other).  People got better at following commands of the leaders, and spent less time fighting for leadership.  Less in-group fighting = more out-group conquering.  So rather than something glorious like discovering the secret of language, I think that it was something like becoming the first domesticated humanoid.</description>
		<content:encoded><![CDATA[<p>I&#8217;m seeing a lot of pro-modern human bias.  We know that modern humans were more fit, but that just means that they had more surviving offspring.  There are many possible reasons why modern humans were more fit, and they aren&#8217;t all noble sounding like &#8220;our ancestors were much smarter and could talk&#8221;.  Modern humans had smaller skulls than some of their rivals, and modern human skulls have been shrinking over time.</p>
<p><a href="http://www.npr.org/2011/01/02/132591244/our-brains-are-shrinking-are-we-getting-dumber" rel="nofollow">http://www.npr.org/2011/01/02/132591244/our-brains-are-shrinking-are-we-getting-dumber</a></p>
<p>quote: &#8220;A smaller brain is the signature of selection against aggression,&#8221;</p>
<p>I think that &#8220;the event&#8221; was that humans became domesticated (by each other).  People got better at following commands of the leaders, and spent less time fighting for leadership.  Less in-group fighting = more out-group conquering.  So rather than something glorious like discovering the secret of language, I think that it was something like becoming the first domesticated humanoid.</p>
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		<title>By: Razib Khan</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47041</link>
		<dc:creator>Razib Khan</dc:creator>
		<pubDate>Tue, 25 Sep 2012 01:52:15 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47041</guid>
		<description>&lt;i&gt; He avoids a strict materialist perspective by using the dictum that the sum is greater than the parts. I think his approach has a lot of insight.&lt;/i&gt;

since you&#039;re a fan of philosophy, shouldn&#039;t you be saying he avoids a strict &lt;i&gt;reductionist&lt;/i&gt; perspective? clarify please.</description>
		<content:encoded><![CDATA[<p><i> He avoids a strict materialist perspective by using the dictum that the sum is greater than the parts. I think his approach has a lot of insight.</i></p>
<p>since you&#8217;re a fan of philosophy, shouldn&#8217;t you be saying he avoids a strict <i>reductionist</i> perspective? clarify please.</p>
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		<title>By: Razib Khan</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47040</link>
		<dc:creator>Razib Khan</dc:creator>
		<pubDate>Tue, 25 Sep 2012 01:51:02 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47040</guid>
		<description>&lt;i&gt;And once these ideas have cultural acceptance, they can be horribly abused during times of social upheaval to apply those with a different skin color or who belong to a different tribe.&lt;/i&gt;

this is bizarre. you think people need some deep philosophical reason to engage in the things that you fear? people have been killing people of other tribes even when they share the same religion.

&lt;i&gt;I think I’ll side with the philosophers on this one!&lt;/i&gt;

do you mean this more than rhetorically? if so, that&#039;s awful stupid sounding to me. singer is a philosopher, and in fact i i suspect that the average non-christian philosopher might be more open to various things which you might find disturbing.</description>
		<content:encoded><![CDATA[<p><i>And once these ideas have cultural acceptance, they can be horribly abused during times of social upheaval to apply those with a different skin color or who belong to a different tribe.</i></p>
<p>this is bizarre. you think people need some deep philosophical reason to engage in the things that you fear? people have been killing people of other tribes even when they share the same religion.</p>
<p><i>I think I’ll side with the philosophers on this one!</i></p>
<p>do you mean this more than rhetorically? if so, that&#8217;s awful stupid sounding to me. singer is a philosopher, and in fact i i suspect that the average non-christian philosopher might be more open to various things which you might find disturbing.</p>
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		<title>By: Cecil New</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47039</link>
		<dc:creator>Cecil New</dc:creator>
		<pubDate>Tue, 25 Sep 2012 00:23:32 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47039</guid>
		<description>I don&#039;t think anyone mentioned that the notion of fractional souls is covered by Douglas Hofstadter in his book &quot;I am a Strange Loop&quot;.  He avoids a strict materialist perspective by using the dictum that the sum is greater than the parts.  I think his approach has a lot of insight.</description>
		<content:encoded><![CDATA[<p>I don&#8217;t think anyone mentioned that the notion of fractional souls is covered by Douglas Hofstadter in his book &#8220;I am a Strange Loop&#8221;.  He avoids a strict materialist perspective by using the dictum that the sum is greater than the parts.  I think his approach has a lot of insight.</p>
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		<title>By: Cecil New</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47038</link>
		<dc:creator>Cecil New</dc:creator>
		<pubDate>Tue, 25 Sep 2012 00:08:30 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47038</guid>
		<description>I was going to comment on the darker side of the idea of animals or AI beings having personhood.  #24 has covered the same thoughts.  But just to expand a bit... if you allow personhood possiblilities (you choose the metrics) for animal and AI beings, then the corrallary is that humans that do not yet share or no longer share those metrics may be treated as non-persons. This is pretty much the Singer ethic, leading to acceptance of abortion, infanticide, and euthanasia.

And once these ideas have cultural acceptance, they can be horribly abused during times of social upheaval to apply those with a different skin color or who belong to a different tribe.

I think I&#039;ll side with the philosophers on this one!</description>
		<content:encoded><![CDATA[<p>I was going to comment on the darker side of the idea of animals or AI beings having personhood.  #24 has covered the same thoughts.  But just to expand a bit&#8230; if you allow personhood possiblilities (you choose the metrics) for animal and AI beings, then the corrallary is that humans that do not yet share or no longer share those metrics may be treated as non-persons. This is pretty much the Singer ethic, leading to acceptance of abortion, infanticide, and euthanasia.</p>
<p>And once these ideas have cultural acceptance, they can be horribly abused during times of social upheaval to apply those with a different skin color or who belong to a different tribe.</p>
<p>I think I&#8217;ll side with the philosophers on this one!</p>
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		<title>By: Seth</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47037</link>
		<dc:creator>Seth</dc:creator>
		<pubDate>Tue, 25 Sep 2012 00:00:38 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47037</guid>
		<description>&lt;i&gt; This seems really most unlikely. A single point mutation that produced the human larynx and the ability to mentally construct sentences and the ability to understand them… nah. &lt;/i&gt;

Ha. Noamy would of course agree about the human larynx but disagree about the ability to mentally construct sentences.

Like I said, I&#039;m no Chomskyite, and I&#039;m bringing this up as a devil&#039;s advocate: as far as I can see, though, if you take away any level of the lexicogrammar, you simply don&#039;t have human language. So how does language &quot;come into being&quot; from those smaller parts?

An obvious point: the vocal tract is much more than a larynx. The evolution of language would need to involve, not just a dropped larynx, but the ability to manipulate the vocal tract to produce discrete phonetic sounds; and the ability to put those sounds into discrete phonemes; and the ability to pattern those phonemes in meaningful ways . . . But what is the adaptive value of any of these abilities, on their own, divorced from a full linguistic ability? Minus a &#039;language gene&#039;, what would be the adaptive pressure for, say, morphemic production?

Again, I&#039;m not asking because I disagree with the argument in the original post; I&#039;m asking because these are, in a simplified form, the kind of questions the true-believing Chomskyites in my department would ask . . . </description>
		<content:encoded><![CDATA[<p><i> This seems really most unlikely. A single point mutation that produced the human larynx and the ability to mentally construct sentences and the ability to understand them… nah. </i></p>
<p>Ha. Noamy would of course agree about the human larynx but disagree about the ability to mentally construct sentences.</p>
<p>Like I said, I&#8217;m no Chomskyite, and I&#8217;m bringing this up as a devil&#8217;s advocate: as far as I can see, though, if you take away any level of the lexicogrammar, you simply don&#8217;t have human language. So how does language &#8220;come into being&#8221; from those smaller parts?</p>
<p>An obvious point: the vocal tract is much more than a larynx. The evolution of language would need to involve, not just a dropped larynx, but the ability to manipulate the vocal tract to produce discrete phonetic sounds; and the ability to put those sounds into discrete phonemes; and the ability to pattern those phonemes in meaningful ways . . . But what is the adaptive value of any of these abilities, on their own, divorced from a full linguistic ability? Minus a &#8216;language gene&#8217;, what would be the adaptive pressure for, say, morphemic production?</p>
<p>Again, I&#8217;m not asking because I disagree with the argument in the original post; I&#8217;m asking because these are, in a simplified form, the kind of questions the true-believing Chomskyites in my department would ask . . . </p>
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		<title>By: BDoyle</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47036</link>
		<dc:creator>BDoyle</dc:creator>
		<pubDate>Mon, 24 Sep 2012 23:18:32 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47036</guid>
		<description>Richard Klein almost gets it right, I think. Cultural evolution and biological evolution look like they become de-linked about 50,000 years ago. But....there is no plausible genetic change that could have occurred then to cause this because of behaviorally modern humans being rooted long before this.

So, I think we have to look for non-biological causes for this. There are some astonishingly old finds of modern-looking tools at sporadic locations in Africa, but the technology seems to pop up and then disappear, being reinvented elsewhere.  It may be that a critical mass of people lived somewhere, sometime, that was persistent enough to spread.</description>
		<content:encoded><![CDATA[<p>Richard Klein almost gets it right, I think. Cultural evolution and biological evolution look like they become de-linked about 50,000 years ago. But&#8230;.there is no plausible genetic change that could have occurred then to cause this because of behaviorally modern humans being rooted long before this.</p>
<p>So, I think we have to look for non-biological causes for this. There are some astonishingly old finds of modern-looking tools at sporadic locations in Africa, but the technology seems to pop up and then disappear, being reinvented elsewhere.  It may be that a critical mass of people lived somewhere, sometime, that was persistent enough to spread.</p>
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		<title>By: ziel</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47035</link>
		<dc:creator>ziel</dc:creator>
		<pubDate>Mon, 24 Sep 2012 23:01:45 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47035</guid>
		<description>#35 - Thank you. Few things more annoying than outrage over the evil 3/5 Rule.</description>
		<content:encoded><![CDATA[<p>#35 &#8211; Thank you. Few things more annoying than outrage over the evil 3/5 Rule.</p>
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		<title>By: Random Rambler</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47034</link>
		<dc:creator>Random Rambler</dc:creator>
		<pubDate>Mon, 24 Sep 2012 21:10:24 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47034</guid>
		<description>@34: I see. Well, I am interested in hypotheses regarding to origins of bigger brains, abstract thought, language, and the like. I&#039;m definitely more interested in learning than in sharing my own thoughts at this point.</description>
		<content:encoded><![CDATA[<p>@34: I see. Well, I am interested in hypotheses regarding to origins of bigger brains, abstract thought, language, and the like. I&#8217;m definitely more interested in learning than in sharing my own thoughts at this point.</p>
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		<title>By: Syon</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47033</link>
		<dc:creator>Syon</dc:creator>
		<pubDate>Mon, 24 Sep 2012 20:46:32 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47033</guid>
		<description>Mike Keesey:&quot;The original U.S. Constitution famously considered slaves to be 3/5 of a person (Article 1, Section 2, Paragraph 3) for the purposes of calculating the number of representatives. It goes without saying that this is the most abhorrent part of that document. But the idea of “fractional personhood” might indeed be relevant when discussing extinct stem-humans. Was Homo ergaster 3/5 of a person?&quot;

Of course, if the slave-owners had had their way, slaves would have counted as a full-person for calculating representation in Congress; the three fifths rule was actually an anti-slavery measure.</description>
		<content:encoded><![CDATA[<p>Mike Keesey:&#8221;The original U.S. Constitution famously considered slaves to be 3/5 of a person (Article 1, Section 2, Paragraph 3) for the purposes of calculating the number of representatives. It goes without saying that this is the most abhorrent part of that document. But the idea of “fractional personhood” might indeed be relevant when discussing extinct stem-humans. Was Homo ergaster 3/5 of a person?&#8221;</p>
<p>Of course, if the slave-owners had had their way, slaves would have counted as a full-person for calculating representation in Congress; the three fifths rule was actually an anti-slavery measure.</p>
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		<title>By: pconroy</title>
		<link>http://blogs.discovermagazine.com/gnxp/2012/09/humanity-isnt-it-becomes/#comment-47032</link>
		<dc:creator>pconroy</dc:creator>
		<pubDate>Mon, 24 Sep 2012 20:28:44 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/gnxp/?p=18443#comment-47032</guid>
		<description>@33 RR,

No book recommendations, as I haven&#039;t written any yet ;)

My opinions are based on my powers of observation and applied rationality...</description>
		<content:encoded><![CDATA[<p>@33 RR,</p>
<p>No book recommendations, as I haven&#8217;t written any yet <img src='http://blogs.discovermagazine.com/gnxp/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> </p>
<p>My opinions are based on my powers of observation and applied rationality&#8230;</p>
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