Yes, that’s what it is referencing, but there’s another level of reference, “Vecna” was an anagram of “Vance” the last name of writer “Jack Vance” whose magic system influenced D&D magic. So Eliezer has used the unanagrammed version.
Yes, that’s what it is referencing, but there’s another level of reference, “Vecna” was an anagram of “Vance” the last name of writer “Jack Vance” whose magic system influenced D&D magic. So Eliezer has used the unanagrammed version.