Just a quick one.
I was thinking about how the Oceanic 6 (minus Aaron) had to recreate flight 815 as much as possible, and had a thought about Hurley. On 815 he had to buy an extra seat because of his size. On 316 he bought loads of extra seats, this time because he knew the plane would crash!
I know it's a minor thing, but I thought that was pretty cool. I've not read that anywhere else so far. I think Hurley did it to save lives, not to re-create 815. And I guess that might be part of the reason why not everyone flashed back to the 70s. To recreate 815, he would have had to buy just 1 extra seat.