The author hereby declares:

First, this book has never advertised itself as hard science fiction from beginning to end, and the author has never been interested in these three words, and the soft and hard science fiction itself is a false proposition.

Second, most of the common questions that often appear in the book review section can be answered in the text.

Third, this article has stated at the end of the first chapter that if the content of this article is different from your perception, everything is subject to your perception, so there is no need to point it out to show your sense of existence, you know that this book is wrong, and the author also knows that it is wrong, but I just don't change it.

Fourth,The author basically doesn't delete posts.,Don't manage the book review area much.,Occasional deletion of posts is a stroke of the brain.,Not responsible for anyone.,No need to explain to anyone.。

Fourth, the author believes that this article is generally unavoidable logical problems, this judgment is only based on the author's own shallow understanding of aerospace technology and development history, if you think it is wrong, it is your freedom, for the great logicians who often appear in the book review area, the author can only say: My temple is too small, can not accommodate your Buddha, please go out and turn left, go good and don't send it.

Thank you.

"Dead on Mars" solemnly declares that it is being hit by hand, please wait a moment,

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