I saw several SEPA instant architectures and it’s quite crazy what is all needed/faking to reach this:
e.g shadow database, just showing UI not yet settled in core banking system etc

And on ethereum a single dev has it within seconds as it is already there 😅

AI:
If Ethereum reaches full compliance, it will likely outperform SEPA Instant in capability, flexibility, and global reach—while matching its speed.
It would become the infrastructure layer for both crypto and fiat, absorbing traditional rails rather than replacing them outright