Elon vs Zuckerberg: Has Threads killed Twitter?

It’s been a few weeks since Meta launched its new App, and direct Twitter rival Threads. So with over 100 million users, what do we know about it so far? And has Mark Zuckerberg actually created a "Twitter killer"?And while Twitter may be struggling, billionaire Elon Musk has launched a new AI company called xAI. The Tesla owner has previously been critical of AI, including the hugely popular ChatGPT for being "too woke", so how will his offering differ?