Christopher Alexander
That one. (Christopher Alexander Memorial)
Seljuk Being. Hand-drawn by Christopher Alexander for Patterns of Software.
I'd never seen legible photos of any of his projects at that point, except perhaps Julian Street. I recall a strong sense of flash recognition—I had no time to reason out the characteristics or perform an analysis. It wasn't any small set of things. My mind simply shouted, "this one," and I believed it.
Christopher Alexander turned to me and said simply, "Yes."