I’m thankful that my memory is good because my vision is going.

In this self-deprecating line, Poundstone jokes about aging by contrasting two faculties that often change over time: memory and eyesight. The humor comes from the mock-gratitude—she frames decline as a trade-off she can manage, as if good memory compensates for failing vision. Beneath the punchline is a familiar observation about how people adapt to physical limitations by leaning on strengths that remain intact. The quip also plays on the everyday practicality of memory: if you can’t see as well, remembering details, routines, and where things are becomes more valuable. It’s a light, resilient way of acknowledging vulnerability without sentimentality.