You don’t know what hard work is.

Let’s say we have a fictional construction company with a productivity metric called “Bricks per day”(BPD). Fred is one of the top performers, he consistently reaches 120BPD, and everyone is very happy with him.

Mike is the new guy, he’s been there for only 2 months, and his BPD never goes over 60.

At first glance it feels like Mike is working half as hard as Fred.