Whenn is a common joke word, but shouldn't be. Well... I'm exaggerating. It's not a common joke, nor would it ever be useful in common parlance. However, within certain fields, it is perfectly obvious in meaning, and arguably useful. Whenn is the counterpart to iff; just as iff means "if and only if", whenn means "when and only when".

Iff is used to indicate a 100% correlation -- if X then Y, and also if Y then X. Or to put it more simply, these things only happen together. In English, the…

Destination Moon was a 1950 science fiction film, and one of the first hard science fiction movies, with only the 1929 German silent film Frau im Mond (Woman in the Moon) challenging it for the title of first serious space travel movie. It was produced by George Pal, directed by Irving Pichel, and stared John Archer, Warner Anderson, Tom Powers, and Dick Wesson.

Filmed in Technicolor, using the most modern filming techniques (including Puppetoons-ba…

The phrase above, painted in green on a beige wall, was initially what greeted recently-deceased humans in the waiting room outside the office of the architect of a neighborhood The Good Place.

”The Good Place” was an NBC sitcom that ran for four seasons, from September 19, 2016 to January 30, 2020. Despite being on four years, it only spanned 50 episodes, as it did not adhere to the typical 22-episode season…

An XY error is a common type of communication error where the wrong piece of information is requested -- or given -- based on faulty assumptions.

The term originated to describe a common problem in IT support settings, in which a user calls and asks how to do action Y; upon questioning, they actually want result X, and erroneously believe that Y is the necessary step to get X. In general, XY errors are errors when the next step in a process is misidentified, especially when due to uncertain…