Comment: WARNING: I read some more

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WARNING: I read some more

"What is needed is an electronic payment system based on cryptographic proof instead of trust,allowing any two willing parties to transact directly with each other without the need for a trusted third party. Transactions that are computationally impractical to reverse would protect sellers from fraud, and routine escrow mechanisms could easily be implemented to protect buyers. In this paper, we propose a solution to the double-spending problem using a peer-to-peer distributed timestamp server to generate computational proof of the chronological order of transactions. The system is secure as long as honest nodes collectively control more CPU power than any cooperating group of attacker nodes."

look at that last sentence...and it's not talking about credit cards
"The system is secure as long as honest nodes collectively control more CPU power than any cooperating group of attacker nodes"

and an additional point is this, so I would have to become a cryptographer in order to verify the proof that the bitcoin is legit?
or do I just trust who is telling me? like you for example.