O'Reilly logo
  • Walter Vides thinks this is interesting:

The work on the music recommendations system in this chapter went fairly smoothly. What is something that could have gone wrong (but didn’t) that would have made things much harder for the developers?

From

Cover of Programming Beyond Practices

Note

If Sam wouldn't have liked the application, that could be a more complex scenario

If Fancy videos would have an API the developers would maybe need to have to build a in house system to track somehow the videos a cross URLs