Why so lazy?

I found that many useful things take very short time to learn.
But why I hadn't done that before?
So lazy!

2 days ago, XML looks like some alien-thing to me, after 30 minutes, it's easier than HTML

30 minutes ago, 'make' is some mystical thing to me, now it's so simple and useful tool.

Just give 1-2 hours to learn a tool, it worth your time!