SiVal, your comment makes all of us at HN expect that every Article has such a TL;DR

anyhow, thanks for summing it up. Saves quite some time, when people do this. I am really glad, when there is an article where the top-voted comment says, "you must read all of this, really" or something with along that lines or sentient. Because that's the main reason HN exists, to provide resources that ARE valuable for y-combinator people and their friends.