Earlier quoted context omitted.
In general, any PoW-cryptocoin quickly reaches an equilibrium with its costs. Changes in the difficulty, changes in the exchange rate (usually as a function of changing demand), changes in availability of current/next-generation mining hardware will destabilize this equilibrium temporarily. The answer to the question "should I mine [coin x]" in order to make money is usually "no". You should mine that coin because yo…
A healthy coin depends on a balanced ecosystem of miners and users. If mining becomes unprofitable then the ecosystem will collapse. But if its a coin that miners have significant interest or investment in and they see profitability decreasing due to energy costs, they will be incentivised to find cheaper sources of energy. This likely explains why so many bitcoin mines in china are located near renewable energy sour…
It's an equilibrium.