Knuth-tier wait
At first, people thought it was a hiatus. Then, they agreed that it's probably too-broad a task for any one man to complete, so we should be satisfied with the three extant books. Then we get some of the fourth book! Personally, I want the anti-aging, and anti-death research to continue, even if only to progress the work of this academic treasure-incarnate named Donald Ervin Knuth.