After Elon Musk's silly and manipulative statements about the non-environmental friendliness of bitcoin, I decided that listening to such people is just a waste of time, and even more so it is not worth following their advice. I find it funny when I hear this because most of the things around us are much dirtier than Bitcoin. Even the classic banking system is much dirtier - let's shut it down and leave only cryptocurrency. The world will become cleaner and better the very next day!