1. 2018 was overly interesting for Elon Musk. The serial entrepreneur's infamous tweet about taking Tesla private made him face a legal suit, lose his chairman position and erased nearly $20 billion from his company's value. 2. The year was not so happening for the tech companies. While Google employees all over the world walked out of their offices to stage protest over mishandling of sexual harassment accusations, Amazon employees chanted we are not robots. 3. Once the auto legend is now a fallen star.