Is social media destroying society? Today Mark Zuckerberg’s Meta launches Threads, its rival to Elon Musk’s Twitter.
Tech billionaires launch ‘ultimate battle’
Billionaire pair: Musk (left) is the world's richest person; Zuckerberg is its ninth. Glossary
Twitter - A social media network, now known as X and owned by Elon Musk.
Mark Zuckerberg - Since founding Facebook as a university student, Zuckerberg has become one of the top ten richest people in the world.
Meta - The new name of the company which owns Facebook and Instagram.
Elon Musk - A South African-born entrepreneur whose companies have included the online payment service PayPal. He now controls Twitter, renamed 'X'.