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You misunderstand what "dispute resolution" means, at least in the context of someone proposing a blockchain as an alternative to PayPal.

Dispute resolution refers to a buyer and a seller who used the platform to transact a good having a dispute over the payment. PayPal can arbitrate such a dispute (in principle - your mileage will definitely vary) and either refund the payment to a defrauded buyer, or protect a seller from a buyer seeking to abuse the system.

Blockchains are entirely unable to help with this problem, as they are only a payment layer and have no information about things happening outside the blockchain itself, unlike PayPal.



>Blockchains are entirely unable to help with this problem

You can implement an escrow smart contract where a trusted third party controls when the money is released to the seller or refunded to the buyer.


Then that trusted third party is the one that can solve this problem. The blockchain itself can not.




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