how do you figure out this problem?
I recall this one. I think on this forum somewhere.
Ooh goody, I got to help without doing anything.
Why did the vector cross the road?
It wanted to be normal.
You get to help people a lot more than you realise!
Every day hundreds of people arrive at this forum directly from a search engine. Some of those will be reading your (or other members) answers and finding what they need. (I hope!)