Great post but you still didn't answer my question. Sorry, but I don't believe you. I know, you don't care, but this is a forum and everyone is entitled to their opinion. There is no logic in what you're saying. People wont be able to find your book, even if your book, like yours, is the best book in the world, if it doesn't have any reviews, if it's not ranking. And you're saying that you've just published a book and by itself the book got ranked 4000 in the amazon store (!?!?!) and you have 40 sales per day?! I mean come on man...People pay thousands of dollars to BookBub for the promotion and they never get results like that, but you get them with just publishing a book.

)) I think even Harry Potter and Lord of the Rings had to do some promotions to generate sales. But I guess you didn't have to, somehow.
I don't know, using what magic, people find your newly published book??? Let's say your book is about cancer treatment, just as an example. And I type in the search "cancer treatment". There are hundreds of book in that niche, all with bunch of reviews, all ranking high, and somehow people skip all those books, and say "no, I don't what to buy these books with 1200 reviews, or that best seller" and go on page 11 and download your book?? And now you're saying "yes, but my book is the best, the content is great". But how can readers know that?? Your book doesn't have a single review.