re: How long would it take you to adjust to a life without today’s technology?

It's not that big a deal. Granted smart phones have improved in the last 5 years or so but it wasn't THAT different when my wife and I went to Fiji and New Zealand for 6 weeks. Very little use of our devices while we were backpacking and touring the two countries. It was actually awesome to use the maps in the guidebooks and read actual books.

The hardest thing for me would probably be not having music and audiobooks to listen to while running/working out/walking the dog. I've grown pretty addicted to that.