Morgan Stanley this week published an analyst note by a 15-year-old intern on the new media habits of teenagers. It said his views on the worthlessness of Twitter, advertising and Stephen Fry were “one of the clearest and most thought-provoking insights we have seen”.

Galvanised by the impact of this 15-year-old – sorry, 15 years and 7 months – the FT asked its intern, Darren, to offer our readers some valuable teenage perspectives.