ToplineThe world’s richest person got much richer Wednesday as shares of Elon Musk’s car company Tesla soared following the company’s first-quarter earnings update—which offered little encouragement in its traditional financial results, but gave investors what they long yearned for: Musk recommitting to Tesla after months of paying his near undivided attention to the White House.Elon Musk attends a White House cabinet meeting in February.AFP via Getty Images Key FactsMusk’s net worth climbed $9.6 billion to ...