It's like the progression from manual labor as a society to mass automation of everything physical. Even construction workers have to go to the gym. You'll have

It's like the progression from manual labor as a society to mass automation of everything physical. Even construction workers have to go to the gym. You'll have to do gym things with the mind, too, now. But gym things are not actually manual labor - the task is to find something you can do reliably that helps, rather than get productive things done.