Good point, but it’s only really a problem if you’re investing even resources in all your friends. For the vast majority of my friends and family, I keep in touch with Facebook, which makes the opportunity cost of keeping everyone updated on my life (and vice versa) near zero. For a handful of people who are above-average awesome I make the extra effort of skyping or visiting them in person.
Good point, but it’s only really a problem if you’re investing even resources in all your friends. For the vast majority of my friends and family, I keep in touch with Facebook, which makes the opportunity cost of keeping everyone updated on my life (and vice versa) near zero. For a handful of people who are above-average awesome I make the extra effort of skyping or visiting them in person.