[lucb1e]

That's a rather huge document just to respond to a single sentence (with someone's highlights, not sure if those are yours or whether to otherwise heed them). Feels a bit asymmetrical in the amount of effort one has to put in to understand your comment/point.

From reading the first page, I would say that this could be a summary / an answer to the statement of the person above you:

> when people thought the earth was flat, they were wrong. When people thought the earth was spherical, they were wrong. But if you think that thinking the earth is spherical is just as wrong as thinking the earth is flat, then your view is wronger than both of them put together.

(The document seems to assume that you know the earth is an oblate spheroid or something: rather close to spherical, but off enough that it's noticeable under certain circumstances such as spaceflight.)

If that is indeed what you meant to say, I would recommend citing that part and adding the link for reference. That probably helps more people than just posting the document link by itself