You don't have to be a mathematician to love symbols.
As I was saying, this year began with the publication of a series of essays joined under the title Attention and Meaning and they explore the relationship between attention and language. One of the book’s essays, titled “The Evolution of a Hierarchy of Attention,” was authored by yours truly. Many of the things I say in the paper will be familiar to regular readers of this blog, but I was at last forced to work out the different capacities of attention required to get us from a generic great ape to modern speakers. I had had the project in the back of my mind for years, but this blog mostly builds on the work of others. It was only when I was invited to contribute to the volume that I finally got around to the work.