$BTC Interestingly, Musk’s crypto affection leans more toward Dogecoin, which he’s called his favorite. He’s pushed it for Tesla merch and SpaceX payments, and his endorsements have fueled wild pumps—like Dogecoin hitting an $80 billion market cap in 2021. Bitcoin’s environmental baggage (mining guzzles energy, often from fossil fuels) has made him cautious, while Dogecoin’s lighter footprint aligns better with his vibe. This preference might limit how much Bitcoin’s ups and downs personally affect him compared to if he were all-in on BTC.