I'm not.....there are many here better than me...!!!
Some questions...I just take a guess at......sometimes I'm correct....sometimes I'm not.....
He is very knowlegeable when it comes to math sciences! Nobody is born with this knowledge..... There are MANY math courses you can take in future years to expand your knowledge base and become Chris II
Here are some samples:
calculus (many levels)
advanced applied mathematics
Most engineering courses
etc etc etc Keep studying !