ALTCHAIN/ CROSS CHAIN BLOCKCHAINS

Blockchain technology is an innovation that will keep growing. If you remember we can send money from Bank A to Bank B with our mobile apps right? Yes. The two banks are different with different account number now regarded as Wallet address. You can always send from the mobile app to another bank. This is traditional CROSS CHAIN. This gave birth to what we called Altchains.

Currently with creation of Etherum which is the mother of smartcontract, there has been a lot of innovation such as Defi. Since then we hard a lot of innovations. Now let's talk About ALTCHAIN.
The ability to make transaction from chain to another is Interoperability.

What are some of this Features?

CRYPTO CURRENCY BRIDGING: As at 4 quarter of last year, the ability to send a token from one chain to another was created. That gab between two project were brought to together. For example today one can easily decide to bridge ALGORAND OVER SOLANA. etc In all most L1 layer settlement have this component. With the help Decentralized Applications and Protocol.

NFT BRIDGE: Now Blockchain interactors can send NFTs across any Blockchain. For example XPNETWORK, you can send NFTs from this chain to Tron Nft mark place, Fuse network etc.

These are some of the key features of ALTCHAIN Protocols.
This is just the modernized way of doing transaction from our previous banking system. It reduces stress.

Examples of ALTCHAIN/Cross chain PROTOCOLs
Nft bridge -

https://bridge.xp.network/

Crypto currency Bridge-

https://app.voltage.finance/index.html#/bridge?

Etc

Ensure to drop your view on Cross chain PROTOCOLs thank you @Engr samest