The Robinhood CEO Vlad Tenev has been grilled by the hottest name in crypto – the world’s richest man and Tesla supremo Elon Musk.In a livestream on the Clubhouse app, Musk was given the chance to ask a series of questions to Tenev, Robinhood’s under-fire boss.Musk wasted no time getting straight to the point, asking the Robinhood boss,“What happened last week?