Meta boss and other tech CEOs testified in front of a Senate committee on Wednesday.
Elon Musk retorted by calling the Meta founder "a chicken."
Meta CEO Mark Zuckerberg claimed Threads reached 100 million sign-ups this weekend.
Musk literally challenged Zuckerberg to a "dick measuring contest" after the blockbuster launch of Threads, Meta's Twitter rival.
Some people are refusing to sign up for Meta's Twitter replacement app, Threads. Here's why — and what experts say about it.
And the meme game is already strong.
The rival billionaires appear ready to work out their grievances in a cage match.
The move signals a massive internal power shift at Meta.
Duke of Sussex told a misinformation panel he was emailing CEO Jack Dorsey about how the social media platform was being used.
"It’s such visionary stuff,” the UK’s former deputy prime minster tells his boss, Mark Zuckerberg.