What do you hope to get out of learning about cryptography?
I have already learned about cryptography. You mean why did I learn about cryptography? Or why would I offer to teach it?
I don't think its too valuable, but (1) its an aesthetically pleasing field from the theoretical perspective (2) general knowledge of cryptography is likely to lead to better use of cryptography, which is a little valuable (3) general understanding of what it actually means to be paranoid is valuable.
In a recent thread, SarahC said:
... so here's the place to float ideas around: is there an area you know a lot about? A topic you've been considering writing about? Here's the place to mention it!
From a poll on what people want to see more of, the most votes went to:
Some that got less votes:
... but there are certainly many more things that would be interesting and useful to the community. So what can you teach us?