I generally react with skepticism to most articles that worry about how technology is ruining things, but I think the author has a good point. It is true that in the case of human relationships, focusing on what is efficient leads us to overlook the fundamental point and nature of these relationships. Your acquaintance won't be bothered if you choose to say "Happy Birthday" on their Facebook wall, but something more personalized like a phone call or personal e-mail would be better if you wanted to build a relationship with that person. I guess it's good to keep in mind that maintaining relationships with a network of family and friends takes effort. It is also probably worth it...though I am not sure how much harm the "digital natives" are actually going to bring on themselves.