Even if he's joking his theory has some validation if you look at the price action of bitcoin since 2009.
Bitcoin always broke its resistance and it happened again last week When months old resistance was broken.
I'm certain bitcoin will reach 100,000$+ in the next 2 years and could go over 500,000$ in the next 10-15 years.
Must or not Musk, Bitcoin will have reasons to support its bull run. Do you think the effect from Elon Musk is bigger than ETF approvals this year?
Personally, Musk is the past and ETF approvals are current motivations for Bitcoin. Musk still has his effect on the market but in this period, it is time for ETF news. News from Musk only can support ETF news and combine to bring Bitcoin to $100k.
Musk and Tesla are only parts of institutional investors, there are more on the market.
https://bitcointreasuries.net/