The world's richest man, Elon Musk, stunned the business world when he launched a $44 billion takeover bid for social media giant Twitter. So in this Squiz Shortcut, we take a look at the backgrounds of Twitter and Elon Musk, how this transaction came about, and what's next for the platform Musk calls a digital "town square".Squiz recommends:Profile on Aussie Tesla chair Robyn Denholm - Australian Financial ReviewLive updates on Musk's Twitter acquisition - The New York TimesSee /privacy for privacy and opt-out information.