Conversation so far:
what is the name of the right fielder in who's on first
The right fielder in Who's on First? is never identified. In the Selchow and Righter board game, the right fielder's name is Nobody.
who made who's on first famous
Who's on First? is a comedy routine made famous by Abbott and Costello.
who is part of abbott and costello
Abbott and Costello were an American comedy duo composed of Bud Abbott and Lou Costello.
were abbott and costello referenced in the film arrival
In the 2016 sci-fi movie Arrival, the two Heptapods are named Abbott and Costello by the scientists.

Question: why
Self-contained rewrite: why did the scientists in the film arrival name the two heptapods abbott and costello