What would happen if Elon Musk decided to sell his Bitcoin? What will be its economic impact on the price of Bitcoin?
There is no definite impact, you misjudged Elon Musk, he bought Bitcoin when Bitcoin had reached a new ATH at that time, Bitcoin went up yesterday, not because he bought $$$ billion, in fact he still keeps Bitcoin until now, Bitcoin keeps changing up and down.
Elon sells all Bitcoins, which is definitely no change in the global economy, a clear change for him in terms of 'profit' is clear, for you and me it remains as it is now, changes occur if you buy and keep within a certain period of time, let's say that the current price of Bitcoin is $35,800 maybe if you buy 5-10 Bitcoins and sell in the next 2-3 years it can be at a price of $100,000 who knows, of course you will experience changes automatically.
Remember.
That Elon did something to crypto, never told the public, after he did it, only then did he tell the public, the joke is stale.