Reaching orbital speed takes much more fuel than reaching orbital height.
Hogwash.
Explain. The XKCD guy is usually quite competent at what he does. Are you sure that you are talking about the same thing as he is? If so, what precisely is his mistake?
Explain. The XKCD guy is usually quite competent at what he does. Are you sure that you are talking about the same thing as he is? If so, what precisely is his mistake?