> while the percentage of those with ten or more close friends has fallen by nearly threefold I genuinely think it's not possible to maintain close friendship

> while the percentage of those with ten or more close friends has fallen by nearly threefold I genuinely think it's not possible to maintain close friendship with this many people, especially if they're not in the same group. Or perhaps my definition of a "close friend" differs from an average american, both now and back then.