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2018年以来，尤其是1月份的时候，比特币遭遇了大跌价，一度跌到人民币4万元左右，导致整个加密货币一片下跌，到最近才缓慢恢复到7万元。 今天的新闻报道说，原来这次大跌是由于Mt.Gox的人抛售了！ ...

房产是一个大课题。最近有朋友对房产税这个问题比较关心，甚至专门就此问题问我的看法。 其实，我本身对这个问题并没有太大的关注，业界本身也没有什么人讨论这个问题。 ...

这是我在微信公众号平台上发布的文章《不负责任地精确预测比特币的未来价格》，不到几个小时后，就出现了上面的结果，文章被删除了。 给出的说明说这篇文章违反了某些规定，然而我也不知道违反了哪条规定，不过是当作兴趣一样研究了一下比特币的价格，也没有鼓励任何人买卖比特币。 ...

Summary: I use my model to predict the future price of bitcoin, based on the correlation between price and blockchain.info wallet nubmer. The model is succefully validated using today’s bitcoin price. So I summarize the future price of bitcoin over the next 12 years based on simplified assumptions. Sure, the price is pretty promissing but you should not invest in bitcoin based only my prediction and my model. 上次我介绍了如何预测比特币的未来价格，得出用一元二次的回归模型比较可靠。 ...

公司组织活动去攀岩，对这项运动有所了解的我于是和同事们一起去参加。 攀岩场地。图片来源：http://www.songshubuluo.net 活动场所是一处室外人工攀岩墙壁。分为入门、进阶和高阶三个档次的爬道。我有好久没有运动了，根据教练的安排，我们必须先爬上入门档，才有机会尝试进阶版。 ...

Summary: Blockchain is nowadays catching the attention of the mass media, showing its popularity. For the average people, how should we participate the investment in the cryptocurrency world? I would suggest investing only what you can afford to lose, e.g. 10% of your total assets, and also investing those cryptocurrencies that you truly understand. In addition, be caution of most of ICO projects., which are highly likely to fail in the near future. ...

晚上，在美国的高中同学回国来我所在的城市找老同学们相聚，于是约好时间和地点，准时赴约。 上一次我和他见面是2012年美国的马里兰州，我在那里开会培训，那时我们同是在读博士研究生，时间一晃过去5年多了。 ...

When I am reading a post, I came across a word “nocoiner”. I did not know the exact meaning of this word. But checking the dictionary gives no answer. After Googling it, I got the true meaning. The word is specifically used for Bitcoin (cryptocurrency). Here is the explanation of this word from urbandictionary.com: A Nocoiner is a person who has no Bitcoin. Nocoiners (usually Socialists, Lawyers or MBA Economists ) are people who missed their opportunity to buy Bitcoin at a low price because they thought it was a scam, and who is now bitter at having missed out. ...

对于生活在天朝的人来说，盖章可不是个小事儿，这与国外人重视个人签名是一回事。在国内，许多文件缺少印章就不产生效力。 具体来说，像政府和公司类的公章，盖上它，就是集体意志，反而是个人签名只代表个人意志——比如是哪个领导个人的意见。 ...

This video shows a firework display. I filmed it during the recent Chinese New Year. It was beautiful, and lasted a few seconds, all kids were very exciting when watching it. I like the firework, though it was just a moment. Firework is a great invention, given that it is not used for weapons. My video is at DLive