People like Elon Musk are very rich people who can influence many people. Even in the world of Cryptocurrency, Elon Musk is very famous for often providing support to several projects which ultimately result in very high price increases. The effect of this price increase is what many traders are waiting for.
Elon Musk is very popular, and of course one of the richest people in the world. What he does will influence many people, that's how popular people are. One tweet can increase the price of doge in the past. and currently doge fans are still waiting for what action Elon Musk will take