Could the social media king overtake the search leader next year?Meta Platforms (META 1.49%), the world's largest social media company, has seen its shares soar nearly 660% over the past decade. That rally was driven by the rapid growth of its core apps (Facebook, Instagram, Messenger, and WhatsApp) and its surging ad revenues. It now shares a near-duopoly in the digital advertising market with Alphabet's (GOOG 0.70%) (GOOGL 0.88%) Google in many countries.During the same decade, Alphabet's shares advanced ...