user133634: Given that Elon Musk is partnering with Ethereum founder Vitalik Buterin to mine Bitcoin sustainably, it surely is still profitable, right?

user13866: If mining wasn't profitable, some people would stop mining. The remaining miners would find that mining becomes profitable. It is a self-regulating system.
What it means to mine bitcoin sustainably is probably controversial.

133634: <p>Given that Elon Musk is partnering with Ethereum founder Vitalik Buterin to mine Bitcoin sustainably, it surely is still profitable, right?</p>
 13866: <p>If mining wasn't profitable, some people would stop mining. The remaining miners would find that mining becomes profitable. It is a self-regulating system.</p>
<p>What it means to mine bitcoin sustainably is probably controversial.</p>
