I can't help wondering when reading this...just how many "free brain cycles" do people have in the world?

By "free brain cycles", I mean like one's not used for work and your family and perhaps one hobby...

I cannot even imagine how many people worked so hard and used their cycles to figure this puzzle out, and like I can barely remember what to buy from the store whenever I go.

Don't get me wrong, it's a hell of an achievement for everyone involved, but I just have such a hard time understanding the absolute motivation behind it.