By Luc Olinga The billionaire faces big challenges after his acquisition of Twitter. The last two weeks have been emotionally difficult for the richest man in the world. Since Elon Musk finalized the $44 billion Twitter deal on October 27, he’s faced a mountain of challenges. The biggest of them is to make the social network profitable. Musk started by cutting costs through the elimination of 3,700 jobs in one day. He also fired the CEO and the entire board of directors. Many executives have also resigned, while strong winds seem to be rocking the boat. Indeed, the billionaire’s biggest attemp…