Based on the results of my investigation, that Elon Musk invest in Cardano is just a rumor spread by Cardano holders to make Cardano's price
go higher. Since I didn't find a single piece of evidence to suggest that Elon Musk ever bought Cardano, so we must be careful not to always believe
the news we hear. For now based on the information I have, Elon Musk only invests in Bitcoin and Dogecoin.