When Facebook approaches its fifteenth birthday, we ask if social networks are making us all fake.
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David Grossman investigates how social networks have changed the way we interact with the world, from curing the perfect diet to the way we design restaurants.
Kirsty Wark is joined by Amy Orben of the University of Oxford and the influential journalist Katherine Ormerod.
Newsnight is the BBC news and current affairs television program, with analysis, debate, exclusives and blunt interviews.