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 
how long do you know bitcoin? I also do it, why is it that now I know bitcoin, why not just now.but I am grateful, in the end I can analyze bitcoin.