@Outerspec:
[Hide]Side Note: I just thought of all the mothers and fathers who would risk their lives to protect their children. Is that them overcoming their self-survival instinct or is it in fact instinctive of them to protect their offspring at the cost of their own lives?[/Hide]
As far as I know, to sacrifice oneself for one's kin is also an instinct. The genes are ruthless propagators of themselves and our individual well-being are not exactly their top priority.
However, to spend some quality time together also serves to enhance the bond between parents and children, so it's not like a parent will always sacrifice for a child they don't raise. There are many other varieties, as our genetic structures and upbringing also vary.
This thought experiment focuses solely on physical appearance and leaves out other factors that might play a role in shaping his attraction to either woman. Like, does he even try to communicate with them? I know the purpose of the thought experiment is to focus on the physical and only the pshysical but it just throws the whole discussion of "masculinity" and "femininity" off for me because they encompass so much for than that.
The experiment focus on sexual attraction based on outward appearance, so let's focus on that and assume he only get to look at them. Getting sexually aroused from looking alone is by no mean rare.
Emma Watson might not be the curviest of women but she does it better than Arnold.
How about Marilyn Monroe? Scarlett Johansson?
For all we know he actually might prefer the Arnold figure because of her physical appearance. He could feel a greater attraction to her because having a strong looking mate is better for survival.
1. The question is about to whom he will be physically attracted. Sexual attraction is for the most part a reactive response, and not a product of deliberate rational decision. You go "Golly, that's one hot babe!", or, to quote the famed song poet Akon: "Damn that's a sexy bitch untz untz untz"; and not "This one looks like she could bear good children, therefore I shall be turned on by her", "Target shows sign of potential of being a strong partner. Might be advantageous for survival. Proceed to be get aroused. I repeat, proceed to get aroused". This instinct serves to lure us to unknowingly choose a partner with high probability of fertility.
2. Sexual attraction is often nothing like "I feel safer being with this person." It's "Ah! Look at those curves, those plump juice thigh!"
3. Even if a heterosexual male is a masochist, often he would still imagine his mistress as a voluptuous, conventionally sexy women. Even if the guy has muscle fetish, the women in his fantasy still retain some certain feminine characteristics. A casual stroll through some fetish sites is suffice to prove the point. Pretty sure Arnold's appearance has not one characteristic that would conventionally be called "feminine". So the Arnold-like woman would mostlikely be mistaken for a male. The argument goes to show that there are some certain very definite, recognizable distinctions between the so-called "masculine" and "feminine" appearances. Evolution has equipped us with the ability to distinguish male and female and thereby ensure our reproductive success.
For all we know he just might bash one of them over the head with a rock and dry hump their leg. Also…
Since this is not about choosing a partner to build a home with, he would still choose the one to whom he is more attracted to dry hump.
I know that men of today find a much needed and healthy variety of women attractive and a social upbringing in a diverse society encourages that in small and big ways. A man without that social upringing though would just go with his instincts.
Judging from our pop culture's image of a sexy woman, the famous sex symbols and so on, there seems to be not much difference between most of our heterosexual males and this uncivilized man in term of sexual taste. If beauty is in the eyes of the beholder, most human beholders are more alike than they are different.
@benjamminbrown:
I'd argue that it's genetics. We are all just big, squishy, chemical factories when you think about what we understand about our physical nature.
And doesn't this mean that we are all physical objects with an illusion of agency? Yay, equality!