same engineThe exchange rate grinds up, so the skim harvests real staking yield and the loan self-repays — timed loans, put-writer lenders, the whole apparatus unchanged.
denominationThe one that costs: a T-bill is flat in USD; an LST accrues in the underlying and carries its full volatility against USDC. A USDC book on stETH is a hybrid — margin-market risk pricing plus an accrual stream feeding the skim. Quote the book in the underlying (stETH/ETH) and it collapses back into the pure spread business, with only the peg as risk.
trust surfaceStrictly better than RWAs: the accrual rate is readable on-chain from the LST contract itself — no NAV publisher, no trading calendar, no whitelist, 24/7 arbs, and major LSTs enter as Class A with importable history. Every compliance adaptation evaporates.
the tailDepeg and slashing replace issuer default — jump risk, not diffusion — so LSTs get the same fat-tail credit tier as RWA issuers (LRTs a tier riskier: operator and restaking-cascade risk). And unstaking queues map onto the T+n settlement machinery already built for RWA redemptions: the executor's "redeem with the issuer" route is literally "enter the withdrawal queue."