So how do you select 36.8% of an infinite pool? (3.5 billion is an infinite pool for all intents and purposes)
- Girls in your range (age, available, and close geographically)
- Average time you need to 'learn' a girl (it is, to know the best/cons, and to take a decision if dropping her or not). On some it will take 2 hours, others will take 6 months or even years in some cases.
- Time when you start dating.
- Time when you plan to marry.
- Average time between dates.
So if living in a city big enough, and you start dating at around 18 and plan to marry at around 30, while being skillful enough to get a new date in less than 2 months, you can expect to date around 24 girls. That means you can discard the first 9 dates, and wait until you are almost 22 (3.75 years later) to take things seriously.
But maybe the difference is that I never plan to actually marry. Makes things easier.