[josephg]

I'm not convinced that there are essential technical reasons stopping decentralized systems from scaling into the 10Ktps range that we would need to compete with VISA.

We would have to make a few changes though - we couldn't send all transactions to all nodes - instead we'd need a tree of confirming networks or something. And we might need a 2PC protocol for transactions. (Eg first I send money and generate a hash. Once thats been confirmed you can commit a receive money message. Or something like that).

But I acknowledge that the burden of proof is on me here. And I'm not convinced its worth doing - I agree that there aren't many good use cases for this.