Run the setup notebook before the session

Notebook 00 downloads all three remote datasets and prints their shapes — (20640, 10) (6433, 14) (144, 3). Run it in Colab before the workshop.

If it fails, say so at once. Each download retries and then falls back to the workshop’s own copy, so a host that is down costs seconds, not a section. If notebook 00 still prints could not download, you have no network, and without these files you are stuck at sections 07 and 10. Every other notebook loads only the data its own section needs, so you can open any one of them cold.