I hadn't read about Grayscale (but I'll check it out), but I was aware of MSTR's purchase of bitcoin, which I find to be very ballsy for a publicly-traded corporation to do.  Their stock was up a lot at yesterday's close, though I'm not sure that has anything to do with them buying bitcoin.

Warren Buffett certainly knows what he's doing, and the fact that he's ditching banks stocks has me thinking that something big is brewing, either in the banking sector in particular or the economy as a whole.  It's probably going to end up being both.  Buffett has also invested in metals before.  Some years ago he bought a bunch of physical silver if I'm not mistaken, and he made a tidy profit on it.  And if he's buying a single mining stock, it's likely not simply because he wants to invest in gold.  The business is probably an undervalued company that he's going to hold for the long-term.

This is some pretty interesting news, and it kind of reflects the crazy world we're living in right now.

It's not that he's too old.  Buffett is a very smart man and he just doesn't see it having any long-term value--plus his shareholders at Berkshire Hathaway would probably revolt if he did get into crypto.