Hello, recently I noticed an article about super volcano in Yellowstone and NASA's solution by drill and pumping water in there which will be a medium for energy transfer. I hope I have read good article with good informations. A price estimation was around 3.5 mld dollars. In my country we have build an nulcear power plant around 5 mld dollars so for me this aspect realable. Do you agree? My main question is: Would be better to use as medium some kind of metal or alloy as a bar which would transfer thermal energy by thermal conducting? Temperature of core is around 5000 C. A melting point of wolfram is around 4000 C so such materials exists. They have to exists, a borer has to resist such temperature. Also you need not to pump the water in there and spare energy. What is your oppinion?