What a strange paper. It seems to fixate on seemingly irrelevant details, like a lot of ink is devoted to saying "copper" (surely some alloy is more suitable o

What a strange paper. It seems to fixate on seemingly irrelevant details, like a lot of ink is devoted to saying "copper" (surely some alloy is more suitable or cost-effective) or particular models of a steam turbine. It presents the price of copper, in $/pound, and states it is abundant on that basis. Doesn't mention annual production as far as I can tell. It asserts, without justification, that water can be demineralized, pumped through copper pipes and returned to a lake with no damage to the environment, again providing vague and comparatively minor details about e.g. mineral buildup in the pipes. On the other hand, it seems to ignore massive issues. For example, it specifies that the copper elements should be manufactured nearby, be 8m in diameter, made in 10m long segments... But what about how to drill them into the ground? Into hot magma no less? > The details of the tunneling process, from a geology, volcanology, as well as a mining and drilling standpoint, is beyond the scope of this paper. Furthermore, volcanoes have complex dynamics. It's not merely a soup of hot magma sitting in one place. It rises and falls, for example, presumably flows around too. Cooling the upper parts of the magma chamber is not exactly without risk, either. Cooler, thus harder crust on top of the volcano keeps the pressure fro erupting, but also allows it to rise further. It's like bolting on the pan cover instead of letting it rattle in the steam. It's like reading an experiment design for cooking an egg on Mars, which is all concerned about cooking times and temperatures, and what colour the egg holder should be, and getting to Mars in the first place is an implementation detail.