The genetic limit to muscle building

stumblinthrulife

We've all heard by now that the amount of muscle you can achieve is limited by your genetics. I'd never really looked into that any deeper, but today stumbled across a video that explains this in a little more detail.

http://gizmodo.com/why-is-there-a-limit-to-human-strength-513152631

Forgive me if this is a repost, or if it's old news to everyone.