This is a very simplistic view of the future we are facing. I store a huge chunk of my mind on the web, based on einsteins quotes on facts and books. I dont like being cut off from that. I dont get notifications and tweets and emails all day. I have email on my phone, but its set to pull not push so i get email when i want it. Not everything is an addiction. We are at ubiquitous, cheap networking/computing at the dawn of an Information Age. The future is now.
A war might wipe out some tech, but not the ideas we gained from it. We would INSTANTLY start rebuilding packetized communications systems, which in itself is a major step. It would be a huge step back, but not a reset.
I have lived off the land, hunted prey, grown crops and i have skittered across electric dreams on fertile fields of internet resources. No place was more real than any other and all were interesting places for a human to dwell.