... a much criticized response to this question has been to assume a "godlike" position in which all knowledge is regarded as an accomplished fact.
It occurs to me that objectivists pretty much have to assume this to be the case, in the sense that their principles supposedly are, in and of themselves. (Theists, too, assume this....)
All too often, and yet no better substitute has been found for a dopamine high. An undeniable experience. Try it, you'll love it.