On a similar line, I kinda think prison is a good place for deep learn and work if the environment is safe and one is allowed to bring books and equipment in.
You don't need a prison, many kinds of retreats (not just religious or spiritual, but artists and writers retreats and others) often are "tech-free" (which may be partial or total, though usually at least internet free). Just getting away from the firehose for a couple days can be very effective for resetting your relationship with the internet and its ability to distract for a while.
