Kimberly White/Getty Images for Vanity FairElon Musk, hours after his new company started drilling a tunnel under Los Angeles, began to wax philosophical about floors. "I love floors. They will never let you down," the Tesla and SpaceX CEO quipped in consecutive postings Wednesday evening. The tweets followed news that Musk's new venture, The Boring Company, officially began drilling a tunnel under Los Angeles. Musk launched his tunnel company in April.