Without a hardfork PoS lacks censorship resistance once an attacker gains a majority. At least with PoW you can push back against the censor as fees naturally will increase and incentivize miners.
Hybrid PoW/PoS doesn't get around that problem it just weakens PoW in proportion to what % of the block subsidy goes to PoS.
If PoS is only used for finality, it's still PoW securing the blockchain if the finality layer fails and doesn't change anything. Seems redundant to me.
I think we should stack incremental improvements like Bawdy, Fluffy, and Tevadors proposals for example (Time Adjusted Blockweight, detective mining, and publish or perish). The same way Moneros provides strong privacy because of different layers of tech.
https://xcancel.com/evoskuil/status/1961112363727302745
https://xcancel.com/BawdyAnarchist_/status/1956537556532597238

GitHub
Proof of Stake Fallacy
Bitcoin Cross-Platform C++ Development Toolkit. Contribute to libbitcoin/libbitcoin-system development by creating an account on GitHub.
GitHub
Hybrid Mining Fallacy
Bitcoin Cross-Platform C++ Development Toolkit. Contribute to libbitcoin/libbitcoin-system development by creating an account on GitHub.
GitHub
Implement Detective Mining (Pool Software Change, No Protocol Change Required) · Issue #140 · monero-project/research-lab
We should encourage pools to adopt the "detective mining" strategy from Lee and Kim, which leverages information pools already leak in their job me...
GitHub
Selfish mining mitigations (Publish or Perish) · Issue #144 · monero-project/research-lab
Monero is currently being attacked by a malicious pool that has around 33% of the network hashrate (α = 0.33). There is no evidence that the malic...