>mixing solid facts with (some still) unconfirmed/not well researched hypothesis and stray up fantasy
This doujin really want to be canon because that sound something ZUN would do in his CD stories, heck even rinnosuke's explanation of water's cycle it's the same as how it really works (minus the fairies) and marisa knowledge of natural world (lithology, botanical) as how ZUN like to play with these titbits