I'm guessing that he means that his work is closely related to arithmetic geometry (which I was once told was one of the hardest fields in pure math), and so someone with no background would have a lot of trouble getting it. Presumably it takes even longer to become an expert in arithmetic geometry (15 years?).
I also happen to believe in 10x programmers, in fact I think I am one. HN places a big emphasis on denying the importance of virtuosity or intelligence in programming, and characterizing it as a craft. It's very hard to argue against since nerds have had excessive modesty (often literally) beaten into them. At least you get the occasional boastful athlete who says "I'm just really talented".
I also happen to believe in 10x programmers, in fact I think I am one. HN places a big emphasis on denying the importance of virtuosity or intelligence in programming, and characterizing it as a craft. It's very hard to argue against since nerds have had excessive modesty (often literally) beaten into them. At least you get the occasional boastful athlete who says "I'm just really talented".