David Buchanan and I met at the Conway School of Landscape Design (CSLD)  reunion in September where he gave a six minute talk about what he had been doing since he graduated in 2000. He talked as fast as he could, and I listened as fast as I could, but I was glad I could slow the journey when I received a copy of his new book Taste, Memory: Forgotten Foods, Lost Flavors, and Why They Matter.…