I think he invested a lot of money, Musk is trying to save his money. But it could be something different because Elon Musk is one of the most visionary and crazy people I've seen lately. I trust his explanations.
It is true. Media speaks about 1,5 bll dollars, which Elon invested in cryptoindustry, its amazing volume. I think that should be a nice sign to uptrend of all cryptomarket.