Anecdotally, I just took a long vacation in a country without much cell connectivity, and had a great time. It was very eye opening. But ever since coming back, I've been extremely unmotivated to work. I'm not sure if this counts as work burnout, but I'm sure the vacation had an impact.
Jokes aside, computers (all kinds, handheld incuded) cause as many problems as they solve. They are a trouble relocation device. I feel demotivated working on and for computers.
Where's this. My first thought was North Korea, I wonder if people there are hella creative, but I guess sadly they're too busy doing things the medieval way to have free time.
Second guess is Mongolia, where the steppes go on and on forever...
You don't have to go to such extreme places to be forced into being disconnected from the Internet. I'm sure you'll find such places much nearer to your home.
Parts of California suffice! : ) 10 years ago good part of the four corners states was also good for bad reception, I recall 1.5 days spent in Page without any connection.