I'm curious how he came up with this idea. I think many times we start with the ideal: what if we just had a cable reaching into space that allowed us to easil

I'm curious how he came up with this idea. I think many times we start with the ideal: what if we just had a cable reaching into space that allowed us to easily get up there? And then from there, they work backwards on how that would be engineered. Or was it, he had some fascination with rotors and thought of a really big version of some similar, smaller version he had thought of before. idk