Various tech and business analysts are calling out Elon Musk on just how secured his funding for a potential deal to take Tesla private again actually is. Last week, billionaire tech mogul Elon Musk tweeted that he was considering taking Tesla private at $420, ending the brief message with a simple but profound two-word statement: funding secured. Less than a week later, Musk has walked back the audacious claim in a blog post where he said he had no doubt that Saudi Arabias Public Interest Fund would bankroll the deal.