Picked up the book this is based off at Half-Priced book. They give a really good example I’ll leave for the reader, but it’s a seemingly simple task but hard

Picked up the book this is based off at Half-Priced book. They give a really good example I’ll leave for the reader, but it’s a seemingly simple task but hard to solve. The book asks you to walk away and do something different for a while. When you return, you are able to finish. Demonstrates the idea very well and highly recommend the book.