This is my first post and while I have more degrees than a thermometer none af them have anything to do with this forum. However, I love cosmology and have a few questions from the untrained perspective. I have written and published that the obvious is often the most difficult to see. I have always felt that all energy within the universe would burn itself out like everything else. My first clue came years ago upon learning our sun would burn out and the fact that stars go super nova. What has taken so long for the "experts" to come to that conclusion? Also, isn't the big bang obvious, given that things are moving away from each other, just like a large firework going off in the night sky on the fourth of July? Given that backdrop isn't it equally obvious that everything we see and know about is most likely housed by a much more sizable parallel entity.