Everybody's good at it, gay people are better at it than straight people, and, again, you don't need much time.

大家都很擅长判定性取向，但同性恋者比异性恋者更擅长，而且不需要太多时间。

耶鲁公开课 - 心理学导论课程节选

And most people are heterosexual There's a considerable amount that varies cross-culturally of people who are bisexual But the real puzzle is exclusive homosexuality ? So, why?

多数人都是异性恋的,而且不同文化背景下…,还有很多双性恋者,但真正的难题在于绝对同性恋,为什么呢？

耶鲁公开课 - 心理学导论课程节选