Bitcoin is the best cryptocurrency in the world. It's being using by a lot of people and the number of user in increasing highly. The price of bitcoin is increasing. It's being using in many ways. So I think it's important to spread knowledge about bitcoin. But I don't support your spreading way. In this era, it's so easy to spread any knowledge through social media. We should use this way. Another way is arranging workshop on this. The more people use bitcoin, the price will rise and we will be profited.