Consider the relationship graph of a complete binary polycule (complete = every person is in a relationship with every other person, binary = contains people of only two genders). call an edge in this graph gay if both the people in that edge are the same gender, and call it straight if the people in that edge are different genders.
We will say that a binary polycule tends straight if it has more straight edges than gay edges and that it tends gay if it has more gay edges than straight edges.
Show that if a complete binary polycule contains an equal number of people of both genders, then it will tend straight.
In terms of the size of the complete binary polycule, what is the critical gender ratio for straight tendency? (when the ratio of genders is above the critical gender ratio for straight tendency, the polycule will tend straight)
Do there exist complete binary polycules that trend neither straight nor gay? What about binary polycules that aren't complete?
Research problem: are there other conditions on the relationship graph besides completeness that also result in the existence of a critical ratio?
Okay here's my setup:
Here are the proportions:
If the number of men and women is equal, p=1/2, and 4(p-1/2)²=0, which is less than 1/n for any n. So no matter the size of the polycule, if there are an equal number of women and men, it will tend straight.
If p = 1/2±1/(2√n), then the polycule is balanced. For example, n=4 and p=1/4 or 3/4 works. So does n=9 with p=1/3 or 2/3.
Here's a diagram of different p values and whether they provide gay tendency, straight tendency, or balance:
You might notice that for larger values of n, the "straight tendency" region in the middle gets more and more narrow. Here you can see what that region looks like for n from 0 to 10:
In fact, for n>4, the majority of p values give a polycule that tends gay rather than straight.
Suppose we investigate complete binary polycules for larger and larger values of n:
For larger and larger polycules, straight tendency becomes vanishingly rare, and gay tendency becomes the norm.
Here we see the proportion of relationships in a polycule which are gay plotted against p, in the limiting n->∞ case.
Another win for the gay agenda.
This is one more reason as to why I love math.















