Since you guys are trying to help me, thanks btw, I'm gonna try to explain this better:
When the pec gets so much mass its starts to slightly hang just a little bit b/c of gravity.
What I'm concerned about is this: b/c gravity has more affect on things closer to the ground, would it pull more on the very bottom lower fibers than the ones above, then (even though as the whole muscle grows and all the fibers grow bigger), would, b/c gravity pulled more on the very bottom ones, give the APPEARANCE that the bottom got thinner? Even though all the fibers techinally grew bigger, would the bottom ones, ever start to hang down more, b/c gravity, than the ones above it, thus giving the appearance that the bottom got thinner. That's what I mean, I'm not stupid, I am just having trouble properly conveying my question. I know the fibers didn't "grow thinner" or "shrink" as they grew. They grow bigger as you work them, but am wondering if, as they grow bigger and thicker, would continue to LOOK like they grew, an APPEAR as getting bigger and thicker. Arnold was just an observatory example I was using. This isn't genetics, I don't think, it's just as the fibers grow would not they, for the most part, stay upright and firm and as they grow bigger continue to look like they grew bigger and thicker? Basically, again just for ex) was Arnold's very lower chest, if you were to look at him straight ahead, was it the most thick it's ever been, OR was there any previous point when his very bottom chest actually appeared thicker? That's all this is...