Actually, nothing is extremely important. (Hmmm... What does that mean?) More specifically, the science of mathmatics took a huge step forward with the concept of zero as a place holding symbol. Look it up. I'm not going into a long history of math, here.
For another good understanding of nothing, click the link in Red's sig.
Speaking of nothing, Johnlee may have gotten a haircut today. He'll have to not post to unconfirm that, though.