We could be charitable and assume that he graduated from high school and college in 6 years, and was immediately hired into a well-paying job at age 20. With four years of pre-tax income at $140k, $200k in savings isn't out of the question. (Assuming a 30% marginal tax rate we get a post-tax savings rate of 51%.) Not typical in the slightest, but not impossible, especially if you're from a pampered background.

That aside, claims like this show a lack of perspective and the slightest overconfidence can cut everyone down.