So, the Ham-Nye debate on creationism-scientism revealed something noteworthy about The Big Bang Theory theme song. It is dead wrong in one stanza.
It all started with the big BANG!According to Bill Nye in the debate, in 2004, observations were conducted to show that the universe is actually expanding at a greater rate (accelerating) and not going "the other way. / Collapsing ever inward".
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!
It was indeed theorized that the universe was sort-of like a yo-yo that continually expanded asymptotically to a "pause" and then collapsed into another big bang. This idea supposedly helped show that the universe was infinite in age (helped an Atheist argument against God).
Well, without going into philosophical problems about this infinite-universe-from-the-yo-yo idea (how did yo-yo start?), science has further supported the Christian assertion that the universe has a creator, whom Christians call God.