Replying to MTB Videos, and how much experience on those trails the riders have...

so is a large part of the reason those riders can shred that hard in the videos in PinkBikes's homepage because they know the trails like the back of their hands?

I mean, i feel like i can handle my bike pretty well, but i treat biking like skiing...i like to explore new trails all the time. Because of this i tend to not rail corners and tend to not push it. when i do get to know a trail and its flow, i can push it and feel like i am whipping the bike around AKA like the videos.

so i guess my question is- if i want to start railing trails like the videos, should i just lap a certain trail till i know it down pat. Or should i just get better at biking so i can shred a new trail that way?