Add to ORKGHugh Everett's thesis was ultimately published in September 1957 in a special issue of Reviews of Modern Physics, guest edited by Bryce DeWitt. This was Everett first and only journal publication on the topic. In July of that year, however, as the journal article was going to press, Wheeler spoke with mathematician and physicist Norbert Wiener about Everett's theory. Wiener argued about the importance of a measure in Everett's work. Everett, too, saw his derivation of a typicality measure as of central important, especially in the long thesis. But there is no evidence that Everett followed Wheeler's advice of writing a follow-up paper addressing the question of a measure on the space of branches more explicitly. Wheeler also, once aga...