how ignorant are you?

[hot_pastrami]

I am ignorant of many things.

My first job was as an electrician, though I knew nothing of circuits and wiring. Since then, I have spent years as a professional programmer, yet there is much programming jargon I don't understand... like a musician who can't read music. Now I'm a professional graphics designer, and I know little about Photoshop (I mostly use Paint Shop Pro).

For years, I thought that the word "nonplussed" meant "to be indifferent; unimpressed." Also, I sometimes catch myself saying "irregardless," though it's not a real word; despite my efforts it hasn't been banished from my vocabulary.

Like others, I am ignorant of sports, but that is a voluntary ignorance... I'm sure I could learn if I had even the vaguest desire to do so.

No doubt there are many more things of which I am ignorant of my ignorance. For instance, how to word the previous sentence in a way that isn't awkward.