I mean, it is possible to do instant finality in other ways via POS, Masternodes, or an avalanche pre-consensus. This method has serious tradeoffs in exchange integration and how costly it is to run a full archival node. I'm not saying it is definitely bad but everything has tradeoffs in this space.
Fair point, but HF-A isn’t trying to do instant finality like PoS or Avalanche-style systems.
There’s:
no second consensus
no validator trust assumptions
no liquidity or channel requirements
Basechain still handles all final settlement.HF-A is only about making transactions visible and usable early, not final.
So it avoids trade-offs like:
validator centralization
complex setups for users
and harder integration for centralized exchanges
It’s not replacing consensus, just improving UX without adding those downsides
All-in-all, this is just the first step towards integrating Fastchain technology.