This is a LW / OB bias. Why cryonics as opposed to the many other technoscientific and transhumanist topics out there? Because Eliezer and Robin hyped it up.

Well, there's not a lot you can sign up for, transhumanist-wise. What might be a supplement/replacement for this question?

Do you exercise regularly? Do you use prediction markets/participate in them? Do you invest in index/ETF funds instead of mutual funds? I'm drawing a blank on these sorts of practical things.