Yet that fact is not very relevant for his explanation, sorry.
>Lol, what the heck? Troll or astro-turfed? Where can you get a CS Master's Degree and on only four years of programming?
In lots of places.
In some cases a "CS Master degree" can mean that you took 4 years of Economics or Physics and took a CS postgraduate course afterwards -- not continuous BSc and CS education.
Other countries require 3 years for the BSc and 1 year for a master's degree.