Blockstream Samson Mow said at the “World Blockchain Conference, Wuzhen” that blockchain is not the best way to pay, and each time it requires higher capacity and higher transaction speed. Trading faster will sacrifice the characteristics of centralization, and the blockchain must be continuously authenticated to ensure block validity. Moreover, the time of the block is variable, and the friction is very high based on the hash value. Sometimes its charges are very expensive, the cost of delivering the network is so high and unpredictable.
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