Think of Plasma like a tree:
The root chain (e.g., Ethereum) is the trunk
Plasma chains are branches
Transactions happen on the branches, not the trunk
1. Child Chains
Plasma chains operate independently processing:
Payments
Smart contract interactions
Game or app-specific activity
They are faster and cheaper because they don’t compete with the entire network.
2. Commitments to the Root Chain
Instead of sending every transaction to Layer-1:
Plasma chains submit Merkle roots (cryptographic summaries)
A native token of the blockchain and providing a good kick for the customers and users. Best thing is that you can save gas fee here.
An ideal thing is that it provide very fast and secure transactions and fon, t require so much long to complete.
Smart contracts and filled of full potential to write a new era.
An ideal contender in the market of stable coin transactions.

XPL0.1271+5.39%Watching this from last few days a very stable and goo project in which you can trust for the future.