If you can take risks, then Bitcoin is the most profitable for You. Many of us know about Bitcoin, but we cannot take risks. Without risks, no one can succeed by investing here. There are many who have enough money but they cannot take the risk to buy Bitcoin. Bitcoin is not for those rich people, but there are some poor people who are able to trust Bitcoin. Bitcoin is a decentralized currency, no one can control it even if they want. If those who have big holders try to control the price by accepting more, there is no basis for that. Because it is decentralized. If someone sells Bitcoin, someone else buys it. The demand for the coin with a limited supply of 21 million will gradually increase.