Ok, I know I said I would no longer speak on this, but now you have insulted my intelligence and that pisses me off.

First off, did you read any of my other comments? Because I gave clear explanations on what happens and how you can add extra focus on particular parts of a muscle. So don't sit there and act like I said "yes you can focus upper pecs, now prove me wrong". I'm not an idiot. However, I'm not your mommy, I don't have to hold your hand and tell you what lines in a medical journal or kinesiology book to read. Its not my burden to find quotes to prove my argument. My proof is on how the muscle works, which I explained very simply...If I broke it down more for you, I'd have to use crayon.
Now about my lack of understanding based on my studies, let me break that down for ya. Muscles are part of the human ANATOMY, so wouldn't it be logical if you wanted to learn about muscles, you would study ANATOMY? Several people in this thread mentioned that you are bound by GENETICS, oh looky there I mentioned studying GENETICS. And when it comes to how the muscles are fueled and grow, that deals with hormones traveling throughout the body and effecting the muscle cells...I wonder where you can learn about that? Oh, thats right, CELLULAR BIOLOGY. Now, before you know the facts, don't insult me.
Now, you mention that I am full of fallacies? Name one. You wrongly stated that the burden of proof is on me, when if you want to learn the truth about something, its best to find it for yourself. I don't trust quotes from anyone because I don't know if its an actual quote, or if the source is reputable. As I stated before, I broke it down in an easy to understand manner, if you need more than the common known facts that I gave you, look for it yourself. This is a forum, I'm not getting paid to teach you this stuff. I answered a guys question because he was given poor advice. Oh, and the people that you stand behind, that gave the false advice, quoted nothing. It was all based solely on their opinion. Why don't they have the burden of proving their arguments? Oh, that's right, because I know how to read and research the things that I want to know more about.

So Eric, do you know how muscles work? Are you aware that changing angles when lifting focuses on different areas of a muscle? Pick up a book. Seriously, if you don't know that basic fact of bodybuilding, you need to stay away from a gym until you learn what you are doing and proper techniques. Otherwise you will be wasting your time, and will get yourself, or someone else hurt.