The first time I met Bitcoin was in the fall of 2015. Nakamoto Satoshi's Bitcoin paper is the first time I've seen it. The ledger, which was maintained without the Trusted 3rd Party, was fantastic. After that I learned about Ethereum and Hyperledger, and invested in Crypto Currency. At first I did not know what it was and I bought a little STEEM. Then I learned about steemit. Posting SNS to a blockchain. I thought it was fun. I want to write a lot of articles as well.