Oh, and how do you know I wouldn't use it? People told me all my life I would never use the math I learned either, yet I use it daily. People have told me many times "You'll never use that" and yet I use everything I have learned at one point or another.

The most likely reason I "wouldn't use it" is because I don't understand how it works. I don't understand how it works either because no one will tell me, or no one can tell me.

Until someone either tells me, or explains to me why no one WILL tell me, I will continue to assume no one CAN tell me.