What is the key difference between 'probabilistic finality' and 'deterministic finality' in blockchain consensus?
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A
Probabilistic finality is faster; deterministic finality requires more validators
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B
Probabilistic finality means reversals become increasingly unlikely over time; deterministic finality means a committed block cannot be reversed
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C
Probabilistic finality applies only to smart contracts; deterministic applies to payments
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D
Probabilistic finality requires PoW; deterministic requires PoS