Bitcoin is great for storing value, but it's slow and expensive for small everyday payments. Sending someone KSh 50 worth of Bitcoin means waiting up to 10 minutes and paying fees that might cost more than the payment itself. That's where the Lightning Network comes in.
The Lightning Network is a second layer built on top of Bitcoin. Instead of recording every transaction on the blockchain, two people can open a private payment channel between them and send money back and forth instantly — as many times as they want — without touching the blockchain each time. Only when they're done do they settle the final balance on Bitcoin.
The clever part is that you don't need a direct channel with everyone you want to pay. Lightning automatically finds a route through other people's channels. So if Alice has a channel with Bob, and Bob has a channel with Carol, Alice can pay Carol instantly — no direct connection needed.
This makes micropayments possible for the first time. You can send 10 satoshis (a fraction of a cent) to tip a creator, pay per article, or reward a user — something regular payment systems simply can't do because the fees would be bigger than the payment itself.
For developers, it's one of the most exciting payment tools available today. Fast, global, and no bank required.
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