This is really fascinating. I still don’t have an intuitive understanding of why getting into space takes so much more propellant than flying an airplane, but it seems like it’s definitely a hugely more difficult thing to do. Thanks for posting.
Even more intuitively: it's about distance. Flying from Los Angeles to Salt Lake City requires less fuel than flying from Los Angeles to New York City. Flying from Los Angeles all the way around the world and landing again in Los Angeles takes even more fuel.