Volume of conversations with people on Facebook != volume on Twitter != volume on email != volume on IM != volume on the phone != volume IRL. [1] Also it varie

Volume of conversations with people on Facebook != volume on Twitter != volume on email != volume on IM != volume on the phone != volume IRL. [1] Also it varies drastically year to year. I'm betting this wasn't the case 60 years ago. Maybe I'm a special case. Edit: [1] I mean that the social graphs vary drastically between social networks. In fact there's almost no overlap with people I talk to on each network. Kill them all?