Why is Europe so fed up?

It is nearly midnight and the sound of bongo drums is beating out across Paris’s Place de la Republique where several hundred people are drinking beer, smoking weed and – as one of their numbers says – “bearing witness”.

Witness to what, exactly, is not immediately clear. The mostly young crowd is gathered under a banner that says “Nuit Debout” – which roughly translates as “Rise up at Night” – but beyond that there are few clues as to what unites the protesters gathered under the watchful gaze of several hundred riot police.