> Are you suggesting to basically harvest the thermal energy in the rock in a non-renewable fashion? As I understand it, that's how many geothermal plants work

> Are you suggesting to basically harvest the thermal energy in the rock in a non-renewable fashion? As I understand it, that's how many geothermal plants work, effectively mining the heat underneath them, but at a rate of extraction that means they would become uneconomical over a span of decades rather than months.