Hello my dear @f21steem, thanks for sharing. I have to tell you to get to this publication thanks to the reference of our friend @crypto.piotr.

Apparently everything that is happening lately is a good sign for cryptography, BTC exceeded the figure of $ 9,000, facebook ventures into the business of cryptos, while we in steemit somo stestigos HF21, which for many is a bad news, many changes are taking place and the cryptographic world is moving, hopefully everything will be for the better.