Where is the lack of mental stimulation? Conversation and books are free. You have plenty of time to think. I would think working in an office day-in day-out st

Where is the lack of mental stimulation? Conversation and books are free. You have plenty of time to think. I would think working in an office day-in day-out stringing together commands for a computer out of a limited vocabulary would be a lot more boring and non-stimulating.