ABCD
Sphere

Person 1: How are you?
Person 2: Trapped on the surface of a sphere
[[A beat.]]
Person 1: That astronomy class has made you suck at small talk.
Person 2: The universe is too *big* for small talk.
{{Title text: This message brought to you by the Society of Astronomers Trapped on the Surface of a Sphere.}}
This message brought to you by the Society of Astronomers Trapped on the Surface of a Sphere.