I was just retaking CS261 on Coursera alongside a friend (we're in week 3) and they were asking, "What good is this anyways?" Related techniques and how to imp

I was just retaking CS261 on Coursera alongside a friend (we're in week 3) and they were asking, "What good is this anyways?" Related techniques and how to implement them are covered in the first 2 weeks. While a lot more is going on in this system, one could call the core of the system that does this estimation "simple" for the field.