That they hold Bitcoin instead of accepting USD denominated in BTC? That's possibly the most legitimizing development in the past few years.

One of the most used critical points about Bitcoin has been that it has not been suitable as a medium of exchange or currency. When critics mention this, they point to merchants pretending to accept Bitcoin but in actual fact enrolling a payment processor to instantly convert it to fiat. In other words, they never received Bitcoin.

Not only are Tesla directly accepting Bitcoin here but:

- They do so using their own Bitcoin infrastructure meaning they trust the network

- Don't convert to fiat, meaning they trust the asset as a store of value/medium of exchange