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no blockchain has been able to optimise three qualities simultaneously, decentralisation, security, and scalability

Blockchain Trilemma

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The blockchain trilemma refers to the fact that no blockchain has been able to optimise three qualities simultaneously, decentralisation, security, and scalability.

blockchain-trilemma
Source: SEBA Research
  • Scalability
    Scalability is the ability of the blockchain to accommodate a higher volume of transactions
  • Security
    Security is the ability to protect the data held on the blockchain from different attacks or blockchain’s defence against double-spending
  • Decentralisation
    Decentralisation is the redundancy in the network that makes sure fewer entities do not control the network

I am faced with a bruising dilemma: pay to fix the dishwasher or continue serving everything in waffle cones.

Dana John Gould
American stand-up comedian, actor, writer and voice artist