How Much a Miner Earns:
The rewards for bitcoin mining are halved every four years or so. When bitcoin was first mined in 2009, mining one block would earn you 50 BTC. In 2012, this was halved to 25 BTC. By 2016, this was halved again to the current level of 12.5 BTC. In about 2020, the reward size will be halved again to 6.25 BTC. As of the time of writing, the reward for completing a block is 12.5 Bitcoin. In November of 2019, the price of Bitcoin was about $9,300 per bitcoin, which means you'd earn $116,250 (12.5 x 9,300) for completing a block. Not a bad incentive to solve that complex hash problem detailed above.
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