> "other proposed megastructures like space elevators, which would take a material to build that doesn't currently exist." If I remember, Isaac Arthur on YouTu

> "other proposed megastructures like space elevators, which would take a material to build that doesn't currently exist." If I remember, Isaac Arthur on YouTube[1] explained that space elevators would not need exotic material, they could be built out of steel or stone if you had enough of it - you'd end up with an inverted pyramid of steel chain so wide at the base that the forces were distributed enought that nowhere was stressed past the breaking point of steel. Not very practical today, but if humans never do develop Ringworld Scrith, not ruled out entirely. [1] https://www.youtube.com/results?search_query=isaac+arthur+space+elevators https://www.youtube.com/results?search_query=isaac+arthur+sp...