Hey Reda, what's up bro. My man, this has been proved by many people. Let's say there are 2 guys, same genetic and everything, but one of them doesn't work on strong basics, just in statics movements with thousands of progressions, and the other guy work until he has strong basics like dips and pull ups. I can guarantee you that the guy how worked in strong basics will learn in general any skill faster than the other guy. And of course it depends of many things. But in general the body is adapted to the movements and has the strength to progress faster than the other body that hasn't enough strength and will take years to learn any single skill, while the other guy, in general, can learn it in months maybe, because the body has enough strength to start doing statics. Again, is my opinion, but has been proved by a lot of strong people.