What do you say if someone says "But Bitcoin mining blockrewards won't be profitable soon and fees are not enough to sustain mining."

Here's how I just responded

I completely get why you'd be concerned that fees are not enough to provide ancillary mining revenue as halvings but into block rewards. And you're right, this was a big concern a few years ago.


The reason it is no longer an issue for mining companies is because they have found a myriad of ancillary revenue sources including grid stabiliization (demand response, FCAS, 4CP, blackstart in particular), heat recycling, carbon credits, RECs. I was talking to a mining company 3 days ago that's now regularly earning 2/3 of their income through proactive grid stabilization. This is why I have no concerns about the long-term economic viability of mining.