I often read, and sometimes understand, Tyler Cowen's and Alex Tabarrok's blog, Marginal Revolution. (It's kind of like Overweening Generalist, with more economics.)
Tyler recently published a list of "About what I am optimistic and pessimistic," and it inspired a similar list from libertarian economist Bryan Caplan, which I thought was interesting and might interest RAW fans. Some of them relate pretty directly to RAW's ideas.
Caplan's No. 4: "4. I am a pessimist about life extension. The only path to centuries of healthy life (as opposed to mere simulation) is probably genetically engineering embryos - and it's too late for me and everyone I care about."
On the other hand, he thinks that in 100 years poverty will be gone and a major war will be unthinkable.