Inside Joke

Since I'm not a native English speaker, it is often difficult to understand the inside jokes, whether it's during casual/social conversations or in academic context. Sometimes you have to really know a statistical concept to "get" what others are saying. For example, I finally realized that the company Two-Sigma's name wasn't just a random one--it had to do with "I'm the top 5 percent" mindset! It takes time to really let some concept soak in, and for some reason this made me feel like I was getting more sense out of mere formulas and textbooks.