#1377: Fish explain

[Cueball and Megan are walking down a hill.]

Cueball: The Fermi paradox keeps getting worse. If planets are common, where is everybody?

Megan: Imagine you’re a scuba diver looking at the ocean floor. You know there’s a fish there, but you can’t see it. Why?

Cueball: Maybe the fish looks like sand.

Megan: Yeah…

[Zoom out to the Earth from space, with a black background.]

Megan: …and what would that tell you about the ecosystem?

[Earth moves slightly out of the panel.]

[Earth moves halfway out of the panel.]

[Blank panel.]

[A shark swims through the panel, with movement lines indicating a wavy path.]