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by benchaney 3263 days ago
> So does that mean the network is now demanding each ether be mined every 12 seconds

You have it backwards. A 20% increase in difficulty would mean that a block was only being mined once every 18s. The intuition is that if there are fewer blocks, then it is harder to get one.

I think this change is due to the etherium difficulty bomb:

https://www.google.com/amp/s/themerkle.com/what-is-the-ether...