Big Bang Theory Theme

Our whole universe was in a hot dense state
 Then nearly 14 billion years ago, expansion started (wait)
 The Earth began to cool
 The autotrophs began to drool
 Neanderthals developed tools
 We built a wall (we built the pyramids)
 Math, science, history, unraveling the mystery
 That all started with the big bang
 (Bang!)
 Since the dawn of man is really not that long
 As every galaxy was formed in less time than it takes to sing this song
 A fraction of a second and the elements were made
 The bipeds stood up straight
 The dinosaurs all met their fate
 They tried to leap, but they were late
 And they all died (they froze their asses off)
 The oceans and Pangaea
 See ya, wouldn't wanna be set in motion by the same big bang
 It all started with the big bang
 It's expanding ever outward but one day
 It will pause and start to go the other way
 Collapsing ever inward, we won't be here, it won't be heard
 Our best and brightest figure that it'll make an even bigger bang
 
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 Australopithecus would really have been sick of us
 Debating how we're here, they're catching deer (we're catching viruses)
 Religion or astronomy, Encarta, Deuteronomy
 It all started with the big bang
 Music and mythology, Einstein and astrology
 It all started with the big bang
 It all started with the big bang