So My Nephew who is turning 17 next month is really excited about 3D printing. He's actually really good at designing with CAD as well. He is undecided, like most teens his age as to what he will major in in College in two years. He wants to do something pertaining to 3D printing. What would be the best field of study be for him to get into? I told him that there will likely be all sorts of fields using the technology by the time he graduates college in 6 years. The entire market will have changed substantially. Anyway, what do you guys recommend as fields he should consider?