Radio is the cockroach of communication media — it survives everything.

My Bitcoiner friends living in Portugal told me that when nothing was working yesterday (internet, power, TV), the battery-powered radio was how the Portuguese stayed informed.

Decentralized, local, and resilient to blackouts.

Bitcoiners need to develop ways to transact via radio or ham radio when electricity or internet is down.

I imagine the path would be some form of ecash to sign off-chain transactions via radio while the internet is unstable.

Once the internet comes back, the ecash could be broadcast on-chain.