I'm sorry. I have a very short amount of time here.
You're saying that, for example, for the old McIntyre number 11 shaft that my grandfather worked on, which is 6,000 feet deep and full of hot water, we can't just stick a pipe down and be doing heat transfer. That's the technology they tell me they can use at my house if I get a heat pump.
Why are the upfront costs so high to make something like that doable?