Earlier today, I was watching one of my friends trying to get a video playing on their computer.  First there was no sound, then no video, then sound but blurred colors behind it.  Not exactly what they were trying for.  I helped poke and prod a bit, but it seemed like there was nothing we could do.  It had been saved as an .avi file, instead of a more friendly .mp4 or .mov, which I wouldn't mention were it not for the fact that when this was pointed out, someone actually asked me, "So, what is an .avi file?"

I honestly hadn't a clue.

I'm not trying to point out my own ignorance, but rather emphasize that the more complicated our technology gets, the less and less we really know about it, and how it works.  I call tell you which files will and will not import in Final Cut Pro, but most of the time I can't tell you why that is.  I can tell you that recording on a Vixia camera involves a ration of roughly 1 GB per minute of filming, but why that is remains a mystery.  The list goes on, and I know I'm not the only person in the office that encounters this from time to time.