#1318: Actually explain

[Six people are standing upon a white circle as if it were a miniature planet. Each person is facing the reader and says something to the person on their right. All texts are displayed as a near-continuous stream over their heads to form one circle that encloses the whole picture.]

[From topmost, going clockwise.]

Cueball: Actually, measurements suggest it’s flat.

Ponytail: Actually, it’s a sphere.

White Hat: Actually, it’s an oblate spheroid.

Megan: Actually, it’s a shape defined by the EGM96 coefficients.

Hairy 1: Actually, it’s that plus local topography.

Hairy 2: Actually, it’s embedded in a universe that’s curved.