# 链抽象

Now the blockchain solves cross-chain as if: money is "locked" in different places.
One account at Chaozhan Bank, and one account at Jiangxi Bank.
When paying, only different wallet applications can be opened.
When there were no smartphones, fees had to be paid for cross-chain payments.
Slowly and annoyingly
Isn't this the current blockchain～
Ethereum, BNB Chain, Arbitrum like these different banks
Each blockchain has its own "currency" ( like ETH and BNB).
These are confined to their own chains, and it is not easy to trade them with each other.
With River, this problem can be solved perfectly

Now the blockchain solves cross-chain as if: money is "locked" in different places.
One account at Chaozhou Bank, and one account at Jiangxi Bank.
When paying, only different wallet applications can be opened.
When there were no smartphones, fees had to be paid for cross-chain payments.
Slowly and annoyingly
Isn't this the current blockchain~
Ethereum, BNB Chain, Arbitrum like these different chains.
Every blockchain has its own "money" like ETH and BNB (.
This is confined to its own chains, and it is not easy to trade with each other.
With River, this problem can be solved perfectly～
River ha