Bitcoin's 'mining difficulty' is about to fall. Here's what that means for the cryptocurrency

A cryptocurrency mining computer equipped with four cooling fans is seen on display at a computer mall in Hong Kong, January 29, 2018.
Bobby Yip | Reuters

Bitcoin's mining difficulty is set to drop about 27% Friday by some estimates, as it seeks to make up for the lost computing power that left the network when China banned mining in various provinces two weeks ago.

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