Pastel drawings don’t typically go viral on the internet. But this month, thousands of Twitter users were mesmerized by a courtroom artist’s sketch of Ghislaine Maxwell – the alleged sex-trafficking accomplice of Jeffrey Epstein – staring at the artist and sketching back. Twitter users were disturbed. “I thought this was funny at first but it’s starting to haunt me,” one person wrote. Others commented on the picture’s bizarre, recursive quality – reminiscent of MC Escher’s drawing of hands drawing hands, and raising the possibility of some kind of infinite loop. Was Maxwell trolling us? Or sending the artist an ominous message? “I don’t know, and I’m not going to try…