2006-07-24
Explanation
This comic is titled "SMBC Presents: Upsides to the Nuclear Holocaust - Episode 1: Giving Relationship Tips Gets a Lot Easier." It shows a grizzled old man smoking a pipe and telling a young boy: "Son, there are two kinds of women in the world - there'''s Kim, and there'''s Tracy."
The joke is a dark twist on the cliched fatherly advice about "two kinds of women." Normally this trope involves broad generalizations about personality types, but in a post-nuclear apocalypse scenario where most of humanity has been wiped out, the old man'''s statement is literally true: there are only two women left in the entire world, Kim and Tracy, so all romantic advice is reduced to a simple binary choice. The comic finds dark humor in the idea that a nuclear holocaust would at least simplify dating.
The votey panel shows the old man adding: "Tip 1: Don'''t mix them up." This is a practical extension of the joke. With only two women remaining in existence, confusing the two would be the most basic and consequential relationship mistake one could make.