Some fraction of the population is naturally poly, some naturally mono, some can go either way depending on circumstances.
seems to mean something other than
Some fraction of the population is poly, some mono, some can go either way depending on circumstances.
I took the 'naturally' to just mean that there was some sort of subconscious inclination.
This is a thread where people can ask questions that they would ordinarily feel embarrassed for not knowing the answer to. The previous "stupid" questions thread went to over 800 comments in two and a half weeks, so I think it's time for a new one.