Spare Me From “Product Guys”
So, “product guys:” nobody is going to believe you or take you seriously until you prove it. If you start talking about mobile local social software as a service (MOLASSES), you will be laughed out of the room. You are not, fundamentally, a product person until you actually build products.
Product people, viewed by programmers like me, often function in their own reality distortion field and thus are difficult to figure out. Sometimes they lead to a catastrophe, sometimes to a great product. I still haven't figured out the way to tell one group from another early enough. The delivery (or the lack of it) is the ultimate verification, but that happens quite late in a process. Not to mention the importance of pure luck and chance.
However, following the advice from the article to learn and understand how things work will at least give you some credibility if you want to be a “product person”.