I just read that too, it makes sense in terms of "Speculating which will be the last" - endangered/extinction and "They're filling the sky" - dying and going to heaven or whatever. However I stick by my original statement as some of the lyrics don't make sense otherwise, in that people should find a way of helping solve such problems as extinction in their spare time rather than make them worse - why do something terrible when you can do something amazing (in a good way) if you put your mind to it?
I just read that too, it makes sense in terms of "Speculating which will be the last" - endangered/extinction and "They're filling the sky" - dying and going to heaven or whatever. However I stick by my original statement as some of the lyrics don't make sense otherwise, in that people should find a way of helping solve such problems as extinction in their spare time rather than make them worse - why do something terrible when you can do something amazing (in a good way) if you put your mind to it?