By Luc Olinga The billionaire and CEO of Tesla had not appeared on social media since June 21. It’s the end of a suspense that lasts almost two weeks. Two weeks that seemed like an eternity in Elon Musk’s world. After having dominated almost all conversations in business circles since the beginning of the year, the richest man in the world had suddenly become silent since June 21, the date of his last tweets on the microblogging website Twitter. He did not even come out of this silence to comment on the fact that he had just passed the threshold of 100 million followers on Twitter, a feat that…