I think in this song they're talking about the fact that the world is getting worse. "It'll be a day like this one when the world caves in" refers to Judgement Day and that it comes when the world is truly going to hell, it'll be a day like any other we live out now...
I think in this song they're talking about the fact that the world is getting worse. "It'll be a day like this one when the world caves in" refers to Judgement Day and that it comes when the world is truly going to hell, it'll be a day like any other we live out now...