I'm writing to recommend something awesome to anyone who's recently signed up for cryonics (and to the future self of anyone who's about to do so). Robin Hanson has a longstanding offer that anyone who's newly signed up for cryonics can have an hour's discussion with him on any topic, and I took him up on that last week.
I expected to have a fascinating and wide-ranging discussion on various facets of futurism. My expectations were exceeded. Even if you've been reading Overcoming Bias for a long time, talking with Robin is an order of magnitude more stimulating/persuasive/informative than reading OB or even watching him debate someone else, and I'm now reconsidering my thinking on a number of topics as a result.
So if you've recently signed up, email Robin; and if you're intending to sign up, let this be one more incentive to quit procrastinating!
Relevant links:
The LessWrong Wiki article on cryonics is a good place to start if you have a bunch of questions about the topic.
If you want to argue about whether signing up for cryonics is a good idea, two good and relatively recent threads on that subject are under the posts on A survey of anti-cryonics writing and More Cryonics Probability Estimates.
And if you are cryocrastinating (you've decided that you should sign up for cryonics, but you haven't yet), here's a LW thread about taking the first step.
We also talked about the relative likelihood of burning the cosmic commons, what would be required for a stable singleton in the future, mangled worlds and the Born probabilities, cryonics trusts and other incentives for revival, and some particulars of his projections about an em-driven world; but the topic that I'm most reconsidering afterward is the best approach to working on existential risk.
Essentially, Robin made the case that it's much more marginally useful now to work on analyzing the potentially long tail of x-risks than to focus on one very salient scenario—kind of like the way Bruce Schneier talks about better security via building resilient structures rather than concentrating on foiling specific "Hollywood" terror scenarios.
Seems worth its own post from him or you, IMO.