Big Bang, little fizzle

I have completely lost the text to this. What a horrible feeling. It just. . . went away. What I was GOING to say is that this reminds me of some bizarre experiment on The Big Bang Theory. We have contests at our house about the theme song: how fast you can sing it, word-perfect. So, sigh, here are the words:

Our whole universe was in a hot, dense state
Then nearly fourteen billion years ago expansion started - wait -
The earth began to cool, the autotrophes began to drool
Neanderthals developed tools, we built a wall
(We built the pyramids!)
Math, science, history
Unravelling the mystery
That all started with a big bang
BANG!!!

I get stuck on "developed" (invented?) and "unravelling" (examining?). Who cares anyway? There's no prize.

It's Friday and I lost my text and hardly anyone reads this shit anyway, so why don't I just quit?

P. S. this only gets interesting around 1:27. Before that it's all setup.

http://margaretgunnng.blogspot.ca/2013/04/the-glass-character-synopsis.html

http://members.shaw.ca/margaret_gunning/betterthanlife.htm