Pollen: the book is a program
At the core of Pollen is an argument:
First, that digital books should be the best books we’ve ever had. So far, they’re not even close.
Second, that because digital books are software, an author shouldn’t think of a book as merely data. The book is a program.
Third, that the way we make digital books better than their predecessors is by exploiting this programmability.
That’s what Pollen is for.