sell gold in a week and get rich

Sometimes when I look how naive people are I found it really hard to believe. I don"t know if you know what I mean. When you look at various commercials that are presented in the TV or on the internet you might think that they are really stupid. The products are being presented in a really strange way that is hard for me to understand. I would find it difficult to show you at least one commercial that is convincing for me. That is why I am extremely shocked when some people buy a certain product due to the commercial that they have seen. I can"t understand and that is why I think that such people are naive. Do you agree with me? Or maybe I am the only one thinking in this way about it. Let me show you an example of such commercial. There is a book thanks to which you are supposed to learn how to sell gold within a week and get rich thanks to this. That is really stupid in my opinion. How can you get rich in a week? That doesn"t make any sense for me. People who would buy this book are definitely not thinking properly and they won"t be able to sell gold. But that"s only my opinion and I might be wrong. Do you know any other examples of such commercials or not? Let me know about them as this is really interesting subject to me.