Candidates: * Loosely, "transhumanism", or, more basically, a belief that "radical" self-improvement or self-alteration is possible and desirable. It is no coincidence that people who find the idea of uploading their minds to computers appealing might also enjoy "life hacks." Both ideas involve self-modification. The very idea of "upgrading your rationality" presumes that a level of self-modification is possible, to an extent that a normal person might deny. * Interest in futurism, often in one utopian flavor or another. The concept of FAI turns bullshitting about the Singularity into something that feels like an actionable engineering problem rather than a purely sophistic exercise. You could possibly draw a Venn diagram of three circles, labeled Futurism, Rationality, and Transhumanism. The three concepts overlap conceptually by default. The sweet spot where all three overlap contains the topics of FAI, Fun Theory, AI Risk in general. Our propensity to subscribe to weird political theories can be viewed as the overlap between Futurism and Rationality, i.e. applying logical and dispassionate thinking toward social structures. Our belief that it's even possible (and desirable) to "raise the sanity waterline" lies at the intersection of Transhumanism and Rationality. The overlap of Futurism and Transhumanism is too obvious to belabor. This is a lot of words reiterating basically the idea of Eliezer's Empirical Cluster in Personspace, which he defines extensively as "atheist/libertarian/technophile/sf-fan/early-adopter/programmer/etc". But, I think a lot of our now-prominent diaspora bloggers don't fit into that personspace very well, as he defined it. So, if I had to really drill down to the crux of it, I would say the rallying flag looks something like a default disposition towards taking ideas seriously, plus an assumption that radical self-change is possible. Everything else just falls out of these psychological stances.