The highest level in the hierarchy of humor

There's a comic that I love called The Hierarchy of Humor by Grant Snider.

In it, the levels of humor are described. At the lowest levels there are low effort attempts at humor like puns and overused joke formats. As we ascend there are more.

For a long time it bothered me that I could not even think of any examples of the highest rung (paradox), let alone come up with my own.

Can you think of a good one? Would love to hear it.