There was a discussion program on radio here in Finland (Eftersnack on YLE Vega) where they talked about heavy jobs and one job, along the other works job that

There was a discussion program on radio here in Finland (Eftersnack on YLE Vega) where they talked about heavy jobs and one job, along the other works job that contained physical challenge, was the job as a software engineer. They compared it to playing chess all day long; "the next move is yours and you cannot get it out of your head, you think about the move (read problem in your code/application) all day and night long". Although they went a little bit over the top with the comparison they still hit the nail.