Elon Musk, the CEO of Tesla and SpaceX, has taken a jab at the question-and-answer website Quora on his social media platform X. What Happened: Musk, who is also the owner of the social media platform X, responded to a post criticizing Quora by a user named Alex Cohen. Cohen’s post, which included a video of stand-up comedian Keara Sullivan lambasting Quora’s interface, read, “I will forever hold the opinion that Quora is one of the most useless websites created in the history of all websites.” Musk responded, “It is certainly #1 in pretentiousness!” In the video, Sullivan expressed her frustr…