Completely agree. My persona at work and at university are two separate things. My persona when I come home and interact with my kids is different to my perso

Completely agree. My persona at work and at university are two separate things. My persona when I come home and interact with my kids is different to my persona when I'm arguing with a colleague about database schematics. My political views are relevant with my friends but could cause problems with my employer. In reality we have many hats but Facebook restricts us to one and lets all our friends and family know our every interaction, too, promoting a false sense of ourselves. Zuckerberg said, in the OP's article, that (to paraphrase), it's only friends and family that know what you like/what you've been doing. Do you ring your nan every time you take a dump? Or text your brother when you're feeling horny? No. Facebook is blind to the individual facets of our characters.