Section 1

picture from https://coinmarketcap.com/
Ripple is a sound investment,I consider it's a coin for banks,didn't put too much thought in it,but it excels in most aspects comparing to other coins.so if price went down,I'll buy and hold some.

Section 2

The History and Evolution of Proof of Stake

https://cointelegraph.com/news/the-history-and-evolution-of-proof-of-stake
Pos also has some weakness,nothing is perfect.I wonder if ethereum's POS is gonna go smoothly.

In chinese

币市涨到万亿只是时间问题，只要有耐心，拿着好币不要动，几百倍的利润没问题的。就是心好痒痒，最好每天都涨，哈哈