This is documentary filmmaking in it's most free, most non rule following form. This piece is understated, yet unbelievably expressive. There is no room for a structure in this, only emotional beats, and it's so much more effective with that approach.
The amount of emotionally driven purpose behind every edit, every shot is staggering. This completley shows that that documentaries have not peaked in thier form yet.
The last 15 minutes of this film is perhaps the best sequence I've ever seen in a documentary. I'll remember it for a long time.
Also time sucks... Not the movie, actual time. Death is terrifying... Ok that's all.