...They go to Bitcoin Cash
The bitcoin machines run SHA-256. Bitcoin Cash runs on SHA-256 too. Same algorithm, same hardware, so those machines can mine either one.
The Alpha Engine sits on top of that, watching both, and puts the hashpower wherever it's paying more at that moment. BTC stops making sense, we go to BCH. The system was built to do exactly that.
So when bitcoin goes underwater, our first move is switching, not stopping.
If both coins in that lane end up below cost, then yes, those machines pause. Pause, though. We own them outright. They're in the facility, powered, paid for. No lender, no margin call, nobody forcing us to sell hardware at the bottom. They wait until it makes sense again.
And that's only one lane
We mine six coins on four algorithms and all four run at the same time:
- SHA-256: Bitcoin and Bitcoin Cash, engine picks between them
- Scrypt: Litecoin and Dogecoin, merge-mined on the same machines
- Equihash: Zcash, on its own machines
- kHeavyHash: Kaspa, on its own machines
Litecoin, Dogecoin, Zcash and Kaspa have nothing to do with bitcoin's price. Different coins, different difficulty, different markets. So even in the bad version above, where BTC and BCH are both underwater and that lane is waiting, we've still got three lanes producing.
A bitcoin-only operation has one number to watch, and when it goes the wrong way the whole thing stops. We've got four lanes going at once and the biggest one has a second coin inside it.
Now the bit most people never think about
When bitcoin's price drops, mining bitcoin gets cheaper.
Prices fall, the farms with expensive electricity start losing money and they switch off. Happens every cycle. All that hashpower leaves the network, and the network adjusts itself about every two weeks so blocks keep coming every ten minutes. Fewer machines competing means whoever's still running pulls more bitcoin out of the same hardware.
So our cost per coin comes down. The $50,000 becomes $45,000, maybe $40,000, depending on how many have gone offline.
Which is also why a paused lane isn't just sitting there hoping the price recovers. Its cost is dropping the entire time it waits.
You can watch this happening right now. Eight downward difficulty adjustments already this year, difficulty down around 14% since January. June's cut alone gave everyone still mining about 11% more bitcoin for the same hashpower, and July took another 5% off after hashrate fell nearly 8% in ten days.
What would have to happen for us to actually be stuck
Our production costs would have to climb while the market falls, and stay that way. That's what people are picturing when they ask this.
It doesn't work like that. Costs climb when more miners pile onto the network, and miners leave when the price falls. The two pull against each other. Let's run it through numbers. Say our cost is $50,000 a coin.