"It is possible genetics is a factor, aided by the type of training he does."
This kinda explains why it is. After several years doing this sports professionally, everyone can be like an auto pilot. And The type of training he does is the most efficient for it. And he is one of the best in the world. So his psychology is a big effect too I think.
But this is a normal thing, so it's no big deal for me.
I found this really interesting article about some tests that have been done on Neymar,
Link: http://sports.yahoo.com/news/neymars-brain-auto-pilot-japan-neurologists-073311971--sow.html
Summary: Earlier in the year in February, Japanese neurologists did some MRI brain scans on Neymar. Results from the scans indicated that there was limited brain activity when he rotated his ankles. It led to the thought that when Neymar plays soccer he doesn't about it --- more or less an instinct.
A inference I have made is that since Neymar plays soccer instinctively, him doing skill moves is like anybody else playing soccer because it uses the same amount of brain activity.
What are your thoughts about it?