A young girl in white shorts and a dark blue T-shirt sits on the head of one of the lion statues on Trafalgar Square and waves a European Union flag into the air. People's Vote placards are leaning against the statue and young buy sits on the plinth. The lion has an EU flag between its teeth. The scene is drenched in sunshine; the sky above is cloudless. Behind the lion the spire of a nearby church soars into the sky. The time on the clock face is 4.20.