I was just trying to keep my message short without delving into minutiae, but I actually think the reality is a combination of the two, and in different individuals with different circumstances and genetic makeup, some would tend one way while others the other, plus it will play off one another - as males compete to be losers vs non-losers, even those with the presumed genes in the far future will, on the 'loser fringes', choose fake women. I would be extremely surprised though if there wasn't some genetically based propensity for ending up one way or the other, even if it's indirectly caused via other genetic traits - probably those VERY genes that already lead to the way men readily and always form social hierarchies. In other words, geek types on the fringes, and the alpha-type guys who currently score hot chicks will continue to score the real women.
Alpha type guys? You should know in the more developed societies fewer women actually marry, rather remain in their chosen careers. The birth rates in 1st world countries such as much of Europe, Japan, Korea are below population sustainability levels. Women simply no longer procreate. This also goes with the sort of male the women choose in those societies. The more well off the society the more likely a woman will go with the more educated man with a better financial future. Perhaps a less of an alpha type?
Hmmm. A man who is more emotionally in touch with his feelings - metrosexual? The alpha types fall by the wayside in school, usually don't attend college or university and unless they are lucky to start a business they are not 'loaded' with well being for family sustainability. The latter is more rare in developed societies. You seem to model your hypothesis on high schools.
I think we can't link the desire to want to have sex with a non-doll with automatic fertility.
No, I'm not not AT ALL, and I don't know where you got that, since it appears nowhere in my post. I can only assume it's because you misunderstood my use of the word "fitness", but you must know that in the field of evolution "fitness" has a very specific meaning that is NOT linked to physical fitness or health at all (in many cases it 'happens to' in reality, but it by no means needs to) - evolutionary "fitness" is defined in terms of traits that in the
context of a particular environment simply lead to higher chances of survival. So for example in a world where intelligence often determined your odds of survival, intelligence would be regarded as a "fitness trait" (often in evolution this in fact implies that being
physically weaker at the same time may incidentally be an
advantage, provided it isn't an explicit disadvantage, because it takes energy to focus on particular traits in development - i.e. an organism may have the energy to be either physically strong or mentally strong but not both - and being both will always require more energy than being just one of the two ... what this in effect means is that in certain situations
even being physically weaker can specifically be termed as "greater fitness" - a notion that appears contradictory and confusing to many people). In a world where purple skin with yellow spots gave you higher chances of survival, that would be considered a "fitness trait". It's almost arbitrary and isn't related to physical health. It's the meaning of the word "fitness" in that field. See
http://en.wikipedia.org/wiki/Fitness_(biology) ... there is no absolute concept of health or fitness in evolution, it's entirely environment-dependent ... this is a common mistake by laypeople who misinterpret phrases like "survival of the fittest".
Not at all I didn't misunderstand at all. I assumed you refered to fitness as desire to procreate with a biological woman, as you've repeated in your reply. What you did do, as I suggested was link the 'gene' or 'trait' for desire to want to be with a real woman with longetivity and being able to impregnate a woman successfully ie being fertile. Wanting to procreate is one thing, being able to bring that to fruition is another. A great example of that in biology is viral replication when subjected to an dampening chemotherapeutic effect. In this case retroviruses but also DNA viruses, I'll stick to retroviruses. Retroviruses eg HIV tend to generate a high degree of mutations - with each replication, ie subsequent generations are prone to developing new traits very quickly when coming under selective stress. The wildtype virus, that is the virus which exists in the untreated population of people, replicates and procreates very fast, however it is very susceptible to enzyme blocking drugs. With time, due to the high rate of mutation, the said enzyme becomes resistant to the drugs. The drugs are no longer able to bind it well and virus is able to copy itself. However the same resistance to anti-enzyme drug ALSO
slows down the rate of growth of the virus - because the abnormal mutated viral enzyme is able to withstand the drug but at the same time its replication speed drops. Its 3D conformation is such that it simply is not capable of copying the virus as fast as before. We have in short an example where one trait seems to affect fitness (ie the virus is resistant to drug) but at the same time the viral replication rate drops to maybe 5% of the previous rate.
(Perhaps you're alluding to this. Another great example of this in biology is the resistance Sickle Cell Trait gives to sufferers of Malaria.)
In our example you assumed that a man who is interested in biological women would automatically also be healthier or more virile - but that need not be the case since numerous factors affect a person's desire for procreation with biological women. You also assumed that no other factors drove men to want to father offspring. Simply saying that a class of men would rather have a robot girlfriend but not a family is also counter intuitive, since we know better from societal models. Men tend to want to start families as they grow older and their sexual instincts subside while the desire to retain the family line takes over. The biggest nerds settle down, marry and date the hottest women that is unless they find a rather hot academic female colleague.
I'm not a lay person

and your arguments are a bit over simplified, make a great deal of assumptions and reduce human behaviour, human physiology and the modern societal makeup to negligible levels - where they appear not to factor into the equation - which is far more complex in human terms than a mere desire for finding a biological mate vs an artificial one.
I in fact said nothing about physical fitness at all, but now that you bring it up, it is probably in this case the 'athletic' types (and e.g. those with better social skills) who would tend to more likely to score the real women (I think) ... this is almost incidental though ... we've been 'programmed' this way by millions of years of evolution in which that was an important determinant of male status hierarchies. It is still important actually, since we don't live in the most civilized of worlds yet.
I would disagree. We are more civilised than at any point in history.

Brute strength and ability to resist disease have been overtaken by the need for greater mental abilities because of the sophistication of society and advanced medical care. The men who succeed in our post-hunter-gatherer/stone-age world have different fitness factors - they are either intelligent or intuitive. They are either highly educated and motivated to do so by various factors - love of work, ego boost of success, want to expand knowledge or make money. As the society advances and automates it's processes fewer men can get away with having a poor education, unskilled or unspecialised labour becomes a fringe profession in the modern world, unless of course we assume a very socialist form of government where laziness or ineptitude are rewarded or at least sustained - although never to the same levels to grant the emotional satisfaction and improved well being that good performance in a chosen field of work (eg nerd developer enjoying his work vs a high school jock trashman who is now forced to abuse alcohol)that offers better emotional health.
In short I don't believe that we can link the laid-back, easy-going attitude of some men who prefer dolls vs the men who fight for women. You're automatically also assuming that Alpha types want to procreate. If we disconnect the need for pleasure with the need to procreate - if that can be done - will not the Alpha types resort to dolls themselves? They are easiest to have sex with and without emotional comittment afterwards, while the socially inept nerd may well be more apt to empathise with the well educated, modern woman - so while he may have a doll too, the woman will probably seek him out sooner. As said - too many factors. Besides introducing dolls into the equation may only provide pleasure to men who right now get no pleasure NOR procreation ie keeping the other societal factors the same, the same group of people passes their genes to the women while the same nerds who couldn't get a 'real woman' as you put it (I disagree here too, as sensitive, educated woman is a bigger turn-on and more likely to take better care of herself) still don't get to pass on their genes - their genetic pool dies out in each case - with doll or without.
Biological mathematical modelling is very complex. I just attended a lecture by some guys from Berkely about that.
