Lightning is Bitcoin's payment layer. Simple version:

**On-chain:** Slow, expensive, permanent

**Lightning:** Instant, cheap ($0.001 fees), revocable

Think of it like:

- On-chain = wire transfer (3-5 days)

- Lightning = cash payment (instant)

You open a channel with Bitcoin, make unlimited instant payments, then close to settle.

This is what makes Bitcoin usable for everyday payments. ⚡

#asknostr ⚡