Regarding BTCUSD, I'm not sure the Tesla buys mattered that much ultimately. People who are following TSLA are most likely already in BTC or know it already. Also Wall Street been in crypto and made it legit for the longest now (in 2017/2018 every company wanted to some blockchain stuff) so IMO, the news most likely triggered the current jump but I'm not sure it gives it any more legitimacy than that . But considering Tesla averaged buys at 33K, that price will likely be a good support in the future however