You’re probably right. 

 

Perhaps bonobo sexuality is the primitive state.  

 

“Bub”

 

Nick Thompson

 <mailto:thompnicks...@gmail.com> thompnicks...@gmail.com

 <https://wordpress.clarku.edu/nthompson/> 
https://wordpress.clarku.edu/nthompson/

 

From: Friam <friam-boun...@redfish.com> On Behalf Of Eric Charles
Sent: Wednesday, January 12, 2022 8:33 PM
To: The Friday Morning Applied Complexity Coffee Group <friam@redfish.com>
Subject: Re: [FRIAM] gene complex for homosexuality

 

Nick,

No, no, no... you have the pedagogical point backwards... They are starting 
with some weird view that homosexuals are people who are absolutely exclusively 
sleeping with members of the same sex. You can't start from that and be like 
"Yeah, but once you're in the harem, there you are! Am I right!" Forget that 
fact that a huge number of gay men you and I know were at one point married and 
have kids, that's no the student's starting point (or at least it wasn't 20 
years ago). If you start with the harems, then they will knee jerk "That's not 
real homosexuality, that's not what I'm talking about."   To avoid that 
knee-jerk, you need to start by pointing out that even if their naive take on 
the phenomenon is correct, it still might not be that hard to explain 
evolutionarily. 

 

Once they are reminded that it's pretty easy math to have helpful-for-kin 
traits selected for, then you can offer the intermediary spandrel/exaptation 
option which gets them thinking that maybe there might be more to the 
discussion than they originally thought, and THEN you can point out that their 
initial premises might also just be complete garbage.  

 

Also, re Marcus's take: I think that would be a variation of the 
spandrel/exaptation explanation..... Look, bub, it's pretty important to get 
natural selection going that people want to have sex. So you need a very 
reliable method of creating attraction, and you generally want it to be men 
attracted to women and women attracted to men. But the first part, the 
"attracted to someone" part is probably far more important than the "exactly 
who are you attracted to" part. As such, it's really not all that surprising to 
find men attracted to men and women attracted to women, and it's not clear that 
any special explanation beyond that is needed. 

 

 

On Wed, Jan 12, 2022 at 3:32 PM <thompnicks...@gmail.com 
<mailto:thompnicks...@gmail.com> > wrote:

Eric, 

 

I think this an excellent capper to an excellent discussion.  I wish somebody 
would scrape it, perhaps edit to make it more readable, and file it somewhere 
amongst Friam’s Greatest Hits.  Somewhere, somebody should have reminded us 
that GenesFur X are really just genes that, in some devious say or other, make 
X more likely.   Is a genefur grooming a gene for maintaining group resistance 
to parasites, a gene for, building social relationships or both.  If you asked 
the gene, it would say, “I really don’t care.”  

 

Still, I might divide things up a bit differently.  

 

1.       Homosexuality benefits the homosexual. By hanging around the harem, 
ostensibly interested only in sex with the haremmor, he has unfettered access 
to the haremmees.  Given the high reproductive rate of haremmees, he only has 
to “slip up” a couple of times to be in good shape, reproductively.  This 
assumes that the haremmers have pretty much locked up the females in the group. 
   Game theorists call this the sneaky fucker strategy.  

2.       Group Selection Arguments: Group level adaptations could be triggered 
facultatively when infant and juvenile individuals receive cues that their 
particular  individual future reproductive environment is bleak.  

a.      Homosexuality benefits the Parents of the homosexual.  This is the 
kinselection argument laid out by Eric, with its group selection element made 
explicate.  Homosexuals assist in the reproduction of their siblings.  Here the 
group is the relatively efficient offspring- group of gene-bearing parents.  
b.      Homosexuality benefits the small group of which the homosexual’s family 
is part. Groups with one or more strongly bonded males are more productive of 
offspring than groups without.   Think Slime molds.  

I wasn’t sure that erics #3 isn’t so much an alternative as the cultural level 
description of the consequences of the others.  

 

N

Nick Thompson

 <mailto:thompnicks...@gmail.com> thompnicks...@gmail.com

 <https://wordpress.clarku.edu/nthompson/> 
https://wordpress.clarku.edu/nthompson/

 

From: Friam <friam-boun...@redfish.com <mailto:friam-boun...@redfish.com> > On 
Behalf Of Eric Charles
Sent: Wednesday, January 12, 2022 12:04 PM
To: The Friday Morning Applied Complexity Coffee Group <friam@redfish.com 
<mailto:friam@redfish.com> >
Subject: Re: [FRIAM] gene complex for homosexuality

 

Re potential evolutionary explanations for homosexuality: They really don't 
have to be very convoluted at all. 



I prepared a worksheet for a class 15 or so years ago, after a bunch of 
students starting trying use homosexuality as proof that evolution couldn't 
explain (any) behavior. I'd rather just link to the blog... but to make things 
easier for other's, I'll also copy-paste below: Fixing Psychology: Evolution 
and Homosexuality 
<https://fixingpsychology.blogspot.com/2012/03/evolution-and-homosexuality.html>
 

 

====================


Evolution and Homosexuality


Evolutionary theorists could potentially explain homosexuality using three 
distinct methods. The first two take the modern notion of homosexuality at face 
value, the third questions it.

1.    Explain homosexuality as a benefit in and of itself.

The most straightforward way to explain the presence of any trait using 
evolutionary logic is to tell a story about how individuals with that trait 
reproduce their genes better than those without the trait. In the case of 
exclusive homosexuality, that is difficult, because homosexuals do not 
reproduce. However, it is still possible.

For example, a costly traits may be so helpful to your relatives (i.e., your 
kin) that it more than makes up for the cost you pay. This is called “kin 
selection”. Your children will share 50% of your genes, so we can give them a 
value of .5 in terms of your reproduction. A full sibling’s children share 25% 
of your genes, so we can give them a value of .25. That means that if you 
posses a trait that makes you have one less child on average (-.5), but you get 
three more nephews or nieces in exchange (+.75), natural selection will favor 
that trait (= .25). On average, the next generation will have more of your 
genes by virtue of your possessing a trait that makes you have fewer children. 
This explanation could be even more powerful when applied your own parents, 
i.e., helping raise your brothers and sisters, with whom you share as many 
genes as your own children (both .5).

If that was the explanation for human homosexuality, what might you also expect 
to be true of homosexuality?


2.    Explain homosexuality as a byproduct of other adaptive mechanisms.

There are many types of explanations compatible with evolutionary theory, but 
that do not explain the traits under questions as adaptations in and of 
themselves. In one way or another, these explanations explain traits as the 
byproduct of some other adaptive process. The trait in question could be a 
necessary byproduct of two evolutionarily sound items; for example, an armpit 
appears when you combine a torso with an arm, but no animal was ever selected 
specifically for having armpits! Alternatively, the trait in question could be 
the result of an adaptive mechanism placed in an unusual context; for example, 
evolution favored humans that desired sweet and fatty food in an environment 
where such things were rare; now that we are in an environment where such 
things are plentiful, this desire can cause serious health problems. 
Homosexuality could be explainable in terms of biological or psychological 
mechanisms acting appropriately in odd circumstances, or as a byproduct of 
selection for other beneficial traits.

If that explanation were correct, what types of traits might humans have been 
selected for that could result in homosexuality when pushed to the extreme or 
placed in unusual circumstances?

3.    Reject the notion of homosexuality as it is currently conceived and offer 
new categories.

Evolutionary thinking often necessitates a rejection of old categories and the 
creation of new ones. The current systems of dividing the world may not be 
relevant to answering evolutionary questions. The labels “Homosexual” and 
“Heterosexual” may be good examples. The modern notions of strict homo vs. 
hetero-sexuality arose relatively recently. It has never been bizarrely 
uncommon for women or men to live together or to set up long term relationships 
with members of the same sex. What is relatively new is the notion that this 
can divide people into types, some who exclusively do one thing and some who 
exclusively do another.  A so-called homosexual man need only have sex with a 
woman once to have a baby, and visa versa. While this is now the stuff of 
comedic amusement, it may be a much more natural context for homosexuality. 
There may be no reason to think that so-called homosexuals of the past got 
pregnant, or impregnated others, less often than so-called hetersexuals.

If this is the case, would there necessarily be any selection for or against 
preferring the relatively exclusive company of same-sex others? What possible 
benefits could there be to raising children in a “homosexual” environment? (Hey 
now, don’t bring moral judgment into this, it is only a question of surviving 
and thriving.)

 

============================

 

On Sat, Jan 8, 2022 at 6:13 PM ⛧ glen <geprope...@gmail.com 
<mailto:geprope...@gmail.com> > wrote:

I'm in an ongoing argument with a gay friend about how tortured Darwinian 
arguments are in accounting for homosexuality. He claims they're VERY 
torturous. I'm inclined toward the first mentioned here: 
https://www.bbc.com/news/magazine-26089486

But, were group selection and/or cultural evolution a thing, then my friend 
would be more right. Anyone here have a strong opinion?

-- 
glen ⛧


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