This is the cutest puppy I have seen in my life! I want to take extra good care of this little one, so I only give him the best dog food.

I love puppies.

Introduction - “The Setup”

[In field X, we still don’t understand Y & Z.]

Write a summary of the question(s) you are trying to answer.
What is the state of the world before your research came along?
Also, answer the harsh but important question: Who cares?

In writing this, you can start general, but make sure clearly define the “before” state of the world’s knowledge for the specific area this paper is addressing.