What if Ethereum felt instant & predictable,
Without trusting off-chain side deals?
Here’s a recap of another episode of Bring ETH Back: Preconfirmations & Composability.
With @MuratLite (@primev_xyz), @lepsoe (@ETHGasOfficial) & @DrewVdW (@Commit_Boost & @fabric_ethereum)
Let’s level-set:
A preconfirmation is an inclusion guarantee before finality.
Not “final,” but “your txn will land in this slot/place (if conditions hold).”
That credible promise lets users/apps plan around time, not pray to it.
How that promise’s made:
• Primev → encrypted, low-latency mempool for fast, private inclusion assurances on mainnet.
• Fabric & Commit Boost → shared, standards-based pipe so validators/relays/builders interoperate.
Together, they make timing programmable.
Pre-confs in practice:
• Payments → “authorized now, settle later.”
• Swaps/oracles/exchanges → buy predictable inclusion vs overpaying gas.
• Enterprises → pre-buy capacity around TGEs/NFT drops to protect UX & revenue.
Key mental model: blockspace is multi-faceted.
Not just “a block or nothing,”
It’s whole blocks, top-of-block, end-of-block, specific placements.
This lets wallets, L2s, searchers, apps coordinate deterministically across chains/time.
Early signals:
• ~20k pre-confs last month
• ~10% of blocks trade on secondary markets
• 85–100 consecutive slots enable multi-block strategies
• Multi-block packages show ~25–27% uplift vs two stand-alone blocks
Timing is already being packaged, priced & used.
What moves price: bundle mix, slot timing, MEV density.
Late-slot gains can beat equivalent priority fees. If capacity rises, pressure eases.
Design guardrails matter,
Don’t let pre-confs block critical oracle updates.
Validator lens: today pre-confs add ~5–6 bps over MEV-Boost on average.
Low operational risk; as participation + multi-block products mature, yields should drift up.
Expect treasuries/custodians to test early.
Composability unlock: pre-confs enable L1-synchronous coordination; pair with L2 throughput → atomic UX at scale.
They complement (not replace) builders/relays and broaden competition (e.g., buy a whole block, then auction slices).
North Star: buy timing when needed, keep Ethereum’s integrity intact.
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