Ryanair CEO Michael O'Leary offered Elon Musk a free flight as part of a "big idiot" promotion by the discount carrier, the company's tongue-in-cheek retort after the airline executive and technology mogul traded insults earlier this week. "I suspect he's a bigger idiot than me, but nevertheless, he probably thinks I am a bigger idiot than him," O'Leary said on Wednesday during an hour-long press conference in Dublin, where Ryanair is based. The two have publicly sparred after O'Leary said he