I think it's very easy to imagine that a real human wrote this book, since it's right in line with the materials available in the period. It's not written with

I think it's very easy to imagine that a real human wrote this book, since it's right in line with the materials available in the period. It's not written with some futuristic material like say... laser printer toner. Just because we can't translate something (which may just be gibberish) that doesn't prove the existence of aliens.