Let's talk about Hoskinson:
Cardano uses a proof-of-stake protocol called Ouroboros, and related papers were presented at the CRYPTO conference in 2017.
Cardano uses an extended UTXO model (eUTXO), unlike Ethereum's account model. The execution result and transaction fee can be determined before a transaction is submitted.
$ADA 0.2519 (+1.7%)

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Just casual discussion; this is not advice.