So I was researching L1 which has instant finality and got to know that $SUI, $APTOS, $SEI & $AVAX have deterministic finality as well.
But when you use the chain, they all feel quite slow compared to $S @SonicLabs. Would love @DrSonicScholz input on this!
Tried digging in deeper and this is what I found:
Finality (what the whitepapers quote) only measures when a block can't be reverted.
But what you feel as a user (the "UX finality") includes:
🔹Transaction propagation to validators
🔹Mempool queue & ordering latency
🔹Consensus round-trip
🔹Execution + state update
🔹RPC / indexer broadcast back to front-end
$S @SonicLabs's “instant feel” comes from:
🔹No leader election → no proposer bottleneck.
🔹aBFT DAG → blocks finalized continuously, not in rounds.
🔹Pre-execution parallelism → state updates ready at broadcast.
🔹RPC design built into consensus → finalization signal returns instantly.
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