Dude are you for real? Burst needs miners to verify transactions, and the miners need ELECTRICITY. So NO, Burst cannot be maintained without electricity or internet.
Yes this is for real. The electricity source is off the grid and powered by solar energy. Burst's low energy requirement has that advantage.
Its all over the news. Read it.
"Proof-of-Life Off-Grid Crypto TransactionYou can criticize but this is nothing but a proof of concept of whats possible to do in Burst and its low energy requirement.
Next would be a wifi mesh network without the need for an internet provider.