Powerful crowdsourced supercomputer revs up virus research by inviting anyone online to join in | The Japan Times
Gamers, bitcoin “miners” and companies large and small have teamed up for an unprecedented data-crunching effort that aims to harness idle computing power

How Blockchain Really Works?
Bitcoin (BTC) Mining Difficulty Hits New Record High as Miners Become More Powerful
The Bitcoin (BTC) mining difficulty reaches a fresh record high of 14.78 trln
The current BCH hash rate oscillation looks like a death spiral
The current oscillation in hash power looks like a death spiral. What you are seeing is one or more miners/pools only mining when difficulty is low, and then turning off or mining another chain when difficulty increases in response to their mining. This leads to significantly increased block times when the difficulty is high and the miners are elsewhere and useless ridiculously fast block times when difficulty is low and they return. The periods of higher difficulty form a reinforcing disincentive for other miners to continue mining during those periods. This is what we call a feedback loop.