truckflyer...
The job is good if you like sitting doing nothing for around 80% of your time, so it is great job if your brain activity does not mind being in a very inactive environment.
Bealzebub...
If this is what you are doing, then you are not doing the job.
Maybe if you're a helicopter pilot. On the other hand, maybe you're using your brain to study a magazine or newspaper during cruise. Seriously? I think truckflyer's post was pretty well descriptive of the current state of the career. Especially this part.