This sentence provided a small epiphany, Harry. I would say that I feel less comfortable with my sense of self now; or at least, that the categories of identity I encounter are so fluid that my confidence in understanding them is low. But I always took that as a feature of aging, and (nearly) as a kind of failing. Your observation doesn't restore my comfort or confidence, but it does locate its cause outside of me. If true, that somehow feels like a bit of the burden lifted.

Great piece.