He is the richest man in the world and now he owns one of the world’s most influential social media platforms. So after that hectic Twitter takeover, Elon Musk, who has a penchant for private jets, has decided to add to his fleet. The billionaire has ordered a top-of-the-line jet, a Gulfstream G700, which costs a whopping $78 million (Rs 646 crore). Also read: Head on | Twitter under Elon Musk must banish bias to make it more democratic Gulfstream G700: The ‘largest business jet’ G700 is one of the latest jets made by American aircraft company Gulfstream Aerospace. It…