Epistemological psychology
The term episteme is related to the Greek word επιστήμη, which translates literally as "standing near or by that which causes" but is often simplified as "knowledge" or "science". By ignoring ego interests the core impetus or the essence of a deed, real or imagined, is recovered.
Epistemocracy
Another use seems to be in relation to modern science or western technocracy: "...the social promotion and political em-powerment of a new class of experimental scientists ... what sociologists of science like Blumenberg call an epistemocracy." Again this is more or less opposite to Taleb's use. However it would be unfair to say that any of these have exactly caught on either. It remains a word used in an ad hoc manner.