Let's make this birthday one to remember.

62 years old (Born on November 07, 1962)

Happy Birthday, Hilary Thayer Hamann! May your day be filled with as much authenticity and meaning as the unforgettable journey you crafted in "Anthropology of an American Girl." Your insightful exploration into teenage identity continues to resonate deeply—reminding us all that growing up is a beautifully messy adventure worth celebrating.

And let's not forget your brilliant dive into physics through "Categories—On the Beauty of Physics," proving once again you're equally adept at unraveling life's mysteries whether emotional or scientific. Here's hoping this birthday brings laughter, inspiration—and perhaps fewer existential questions than usual!

Cheers to another year exploring life’s fascinating categories!