If there is no electricity in our world. For sure bitcoin will die and also us humans will die if there are no electricity in near future. We need to use renewable energy for us to have a long lasting electricity.
Electricity is only applicable to bitcoin because without that then bitcoin cannot reach humans to use it and buy it so it will eventually die but in terms of humans they can still survive if there is no electricity because if not then how the humans back in the old days survive without electricity?
Doesn't have to be just electricity they can kill the internet or just restrict http: protocol to "approved" websites. How is your BTC client going to transmit then?