Mirror mirror on the wall, who’s the greatest (or smallest or equal) of them all? (Part one)

Do you know the story about the boy who never said a word until he was 10 years old? The new three-way-comparison operator presented in the C++20 standard, is a bit like this little boy —and if this intro doesn’t make any sense, to many C++ developers neither does the new operator. In this series of two articles, I will untangle and explain everything you need to know about the new operator, AKA the spaceship operator, so you can compare with ease.