Stross lecture: “TESCREAL stands for “transhumanism, extropianism, singularitarianism, cosmism, rationalism (in a very specific context), Effective Altruism, and longtermism.”

Link. Excellent read on the cultural use of Science Fiction literature.

I mourn the loss of the original meaning of singularity- best presented in SF by Vernor Vinge but others have done well with it. (Charles and I disagree a bit on this.)