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The reward for mining Bitcoin will drop from 12.5 BTC to 6.25 BTC in May 2020. The incentive to mine one of the world’s most popular cryptocurrencies will decrease by half. There can only ever be a maximum of 21 million Bitcoins in existence, so the reward for making new ones needs to be reduced periodically in order to bring sustainability to its value. The days of the lone Bitcoin miner are numbered because they hardly stand any chance to make money in this field right now. Large-scale miners know the name of their game is to maximize efficiencies.