That's precisely why nitrogen is proposed. It's 70% of the gas you breathe anyway.

If you take a large room, and flush a basketball sized space with 100% nitrogen, it's no danger to anyone outside that bubble. Even if the bubble is extremely leaky, it takes a long time to change the ratio of gasses in the entire space of the room. Add an exhaust fan and a source of fresh air to the room and everyone in the room outside of the nitrogen bubble would be safe indefinitely.

That said the death penalty is unjustifiable from any perspective. It does not promote safety morality or justice, nor is it logical even from a coldly economic point of view.

"Me who codes with the text editor that came with Ubuntu"...

So VIM?

It's ok.

I haven't read the book, but it has the feel of a movie that tried to include every subplot from the source material. A lot of cool things mentioned or hinted at but not satisfyingly explored.

I think it would have benefitted from a 3 hour run, or an aggressive edit down to a tight 90. At 2 hours and change it's simultaneously too long and too short.