If you stick to a 6-mile orbit, your romantic trajectory is stunted as well. "In the stock market, diversification is critical to reducing risk," says Amir Aczel, Ph.D., a former professor of mathematics and statistics at Bentley University near Boston and author of Chance. "In dating, the same rule applies. You should vary the places you go, and when you go there. This diversification will result in increased probability of meeting women who respond well to you."
In many ways, meeting someone through an online dating site or app is similar to meeting someone through a friend—thanks to detailed online dating profiles, you have a chance to get to know people before you actually meet them. And swiping left in your underwear is much more convenient than getting dressed up and going out to a bar, so it’s no surprise that nearly one-third of marriages today start online, according to a study commissioned by eHarmony.com.