# 67 Scaling Ethereum after the Shanghai Upgrade
The Ledger Podcast
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The Tension Between Scalability, Security and Decentralization
When we use a blockchain, we want permissionless consensus. That means what happens on chain must be censorship resistant. If you give away decentralization, I think this ecosystem has no purpose anymore. The second one is to be secure. Of course, if you come to trust the system, again, there was no point. And finally, there was the scalability aspect, at least in terms of bond weights,.
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