Wouldn't you know it: after 3 hours of searching, I posted a question
asking for help and then stumbled upon the answer to my own question.
I've fixed my wireless connection but I'd still like to know why it
didn't work to begin with. Maybe it's obvious and I'm missing it.
I went to my /etc/network/interfaces file and there I found
1: A definition for the lo interface which I left alone and
2. A definition for the ath0 interface which looked like this: