The resolves YES if, by the end of 2023, nodes participating in the Ethereum network are no longer expected to maintain the entire state. See here for more.
State expiry has been on hold for ~1.5 years now. While we have a feasible proposal (using address space extension with bridge contracts), the extent of change makes it not suitable for mainnet for now. Certainly not 2023, very unlikely 2024.
Source: I co-led the state expiry research effort in late 2021.
@ansgar Thanks for the analysis. I added a 2026-01-01 cutoff for the same question in the market I linked above.
arb https://manifold.markets/BoltonBailey/the-purge-will-ethereum-implement-s (the link here suggests that the two things are likely to be implemented together or not at all)
@BenjaminCosman Yeah, sort of silly that they're classified differently, but I guess Vitalik needed more things to rhyme with "merge".