This is interesting and adds a little new information to tease us. However, i do want to say something. This is very preliminary, but i no longer wish to discount the possibility of physically sinking a shaft using gravity control tools and exotic heat management. I still do not know how, but i do know that the possibility can no longer be discounted with our initial discoveries regarding the nature of gravity.
Prof Xiaodong Song University of Illinois at Urbana-ChampaignThe fact we are discovering different structures... can tell us something about the very long history of the Earth”
Prof Simon Redfern University of CambridgeProbing deeper into the solid inner core is like tracing back in time, to the beginnings of its formation”