Please no. I am talking about the times in which we go back to basics. You can't be able to freely travel, not to mention communicate, etc (this is the scenario

Please no. I am talking about the times in which we go back to basics. You can't be able to freely travel, not to mention communicate, etc (this is the scenario OP draws as when the currency collapse); how can you think there will be sustainable high speed internet connecting miners to sustain a bitcoin blockchain.