At the end of 2013, by chance, I met Guo Hongcai (Master Bao) while he was driving his extended Great Wall with his wife Yangyang and children, embarking on a Bitcoin journey in China. With the introduction of an older brother, we got to know each other over a meal in Chengdu, and later chatted many times in the Chengdu Tianfu Software Park. Since then, after the Spring Festival in 2014, the cryptocurrency community frequently held events in Chengdu, with Huobi, OKCoin, Bter, ZB, and others participating. I remember that Du Jun left the most passionate impression on me at that time, and everyone’s slogan was 'Bitcoin is gold, Litecoin is silver.'