[idf00]

Deep Learning from the Foundations IS part 2. They are not talking about how part 1 starts. They are talking about how part 2 starts. This mirrors how their book is written, with the content typically in Deep Learning for Foundations being the second half of the book. I've taken the courses every year, it's always been like that.

You should consider taking a look at part 1 of the course if you want to understand the starting curriculum: https://course.fast.ai/