Should I be worried about 12/21/12? (Dec. 21st, 2012)?

Let's get together for a beer and discuss it on 22 Dec. 2012. You have one culture ending their cycle on that date (it had to end some time, didn't it?) and a bunch of kooks tying in their own delusions and out-and-out inventions to it. I am especially amused by the citation of the I Ching. That is not a predictive mechanisms. It is written in vague enough language that you can see whatever you want to see in the images described. That makes it good for making decisions but little else.