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I met Paul Grobstein long after my college years, when he gave a talk for the Princeton Alumnae Club. I was just starting to understand the role of stories in my work as a user experience/usability designer, and couldn't tear myself away from Serendip.

When Paul agreed to give a talk at the Usability Professionals' Association, he connected the dots between our (largely cognitive) work and his in neurobiology. One of his examples -- I forget the context now -- was that to walk is to let ourselves fall, and then catch ourselves, over and over. Whenever I think of him, I hear Laurie Anderson's song Walking and Falling.

I wish I had known him better.