Speaking of bitcoin, bitcoin has helped my life, especially in my family's current economy, which I can tell very well from before, and I regret a bit because I know a few new bitcoins a few years, if only I knew bitcoin from scratch maybe now I already a millionaire 
Bitcoin had changed the lives of many people, especially the first investors who have made thousands of dollars from bitcoin investment. In those days the price was just a few dollars and those who hold their bitcoin for long time earned thousands of dollars and now they are millionaires. I also made handsome money from bitcoin and hope that it will also change my future.