part of it is genetics, but a lot of it is a large amount of hypertrophy in the chest coupled with a low bodyfat percentage.

unless you're genetically gifted in developing that look easily, which I'm guessing you are not because you posted and neither are most people out there, that ()() comes from having a big chest with lower bodyfat percentage

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"The iron never lies to you. You can walk outside and listen to all kinds of talk, get told that you're a god or a total bastard. The iron will always kick you the real deal. The iron is the great reference point, the all-knowing perspective giver. Always there like a beacon in the pitch black. I have found the iron to be my greatest friend. It never freaks out on me, never runs. Friends come and go, but 200 pounds is always 200 pounds."

-Henry Rollins
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