On a scale of 1 to George Michael, I'd put my gaydar at about 7. But evidently my so-so ability to spot a gay man sharpens close to when I'm ovulating, or if I've recently imagined myself in a romantic situation, according to a series of studies conducted at the University of Toronto. The results show that straight women are better at judging men's sexual orientation when they are unconsciously motivated to do so, either by hormonal fluctuations or by the power of suggestion.
A pair of MIT students claim that they have created an algorithm that outs gay members of Facebook by analyzing the sexual orientations of their networks of friends.
The students first analyzed the networks of people who publicized their sexual orientation on Facebook. Turns out that statistically speaking, gay men have more gay friends than straight guys do. So then, they used an algorithm to run the stats on men who kept mum about their sexual orientation on the site. Their computer program was able to correctly identify 10 men whom the students personally knew to be gay in the real world but who hadn't shared that fact on Facebook.