I would say the author means that it would be impossible, or would require tech that today's tech cannot do.
science fiction, or fiction, usually means make believe or fake.
Secrets are one of the central themes in the book, although they are not the most prominent theme, they are quite important, as the ending of the book relies heavily on an untrue fact and untrue story, or rather a secret, which determines the fate of one of the characters. This quote (above in your question) particularly mirrors the quote " You never really know a person until you consider things from his point of view...until you climb into his skin and walk around it." Boo Radley remains a secret from the beginning of the book until the end and this quote relates to him as Scout and Jem try to figure him out, since he is so mysterious, yet another one of the secrets present in the novel.
Hi there!
Fox is to fur as peacock is to feathers. It's pretty simple. Get it?
Hope this helps!
The sentence below most effectively uses transition words to create coherence :
I was skiing when a guy came out of nowhere and knocked me down, breaking my leg!
#SPJ2
B. It also shows how much Travis has changed in years, his personality is very different than what it used to be since Old Yeller came. Hes now drawn closer to Arliss, and also drawn closer to his family!