End of Year
Since we are coming up on the end of the year, the discussion tends to change. We go from simple to complex as exams approach. So why not discuss more serious and difficult topics:
What is the meaning of life (beyond this of course)?
Really...why are we here, what's life all about?
It's just about enough to get anybody depressed. Maybe this will cheer you up!
Now for something completely different:
Markets for everything: here and here