Matthew Robson, a 15-year-old who's currently doing work experience at Morgan Stanley, has managed to terrify web bosses by telling them that his generation doesn't really use Twitter.

That's not because they don't know what it is - he says that "updating the micro-blogging service from mobile phones costs valuable credit", and "they realise that no one is viewing their profile, so their tweets are pointless" in a report about the media consumption of his peers.

He also pointed out that he and his friends don't really have time for television - preferring to watch on-demand catchup services instead - and listening to personalised radio like rather than traditional scheduled programming.

"Their time and money is spent instead on cinema, concerts and video game consoles which now double as a more attractive vehicle for chatting with friends than the phone", Matthew said, adding "Even online, teens find advertising extremely annoying and pointless". The teenager also said that none of his friends read a newspaper, slamming the format as "pages and pages of text". They prefer to read summaries online or see them on TV.

Edward Hill-Wood, the head of the analyst group, said: "It was one of the clearest and most thought-provoking insights we have seen. So we published it". "We've had dozens and dozens of fund managers, and several CEOs, e-mailing and calling all day".