What If People Were Rain
Explanation
The Joke
A character proposes a series of increasingly strained analogies ("what if people were rain?" "what if love were a bridge?") in an attempt to be profound. Another character keeps pointing out that these analogies don't actually illuminate anything — they just sound deep because they're vague and metaphorical. The first character gets frustrated because they feel like they're expressing something meaningful, but they can't articulate what.
The Humor
The comic targets a specific kind of pseudo-profundity: statements that feel deep because they're metaphorical but that evaporate under scrutiny. "What if people were rain?" doesn't mean anything specific enough to be either true or false. The comedy comes from the clash between the emotional satisfaction of vague metaphors and the intellectual emptiness of them.
Context
This connects to Daniel Dennett's concept of "deepities" — statements that are ambiguous between a trivially true interpretation and a profound but false one. "Love is just a word" is true if you mean the string of letters L-O-V-E, and profound if you mean that love is meaningless — but the first interpretation is boring and the second is wrong. The comic dramatizes this concept.