Top Highlights

• Plasma supposes that Ethereum Mainnet doesn't need to verify all transactions. Instead, we can process transactions off Mainnet, freeing nodes from having to validate every transaction.
• While Plasma executes transactions off-chain, they are settled on the main Ethereum execution layer
• To prevent malicious withdrawals, a "challenge period" is introduced
• they have more incentive to advance invalid state transitions on a larger scale
• Does not support general computation (cannot run smart contracts. Only basic token transfers, swaps, and a few other transaction types are supported via predicate logic.

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