What exactly is the specific use case where Proof of Work blockchain are appropriate?
Consensus in that design is:
1. Perhaps the single most expensive consensus algorithm ever designed.
2. Deliberately one of the slowest.
3. Does not actually provide trustless consensus once 1/3 of the miner nodes decide to collude.
Other than "our data is a merkle tree but you have to trust us to submit transactions to it", and "a currency system with a failed promise to deliver either scale or trustless consensus" what, is the proper application?
Consensus in that design is:
1. Perhaps the single most expensive consensus algorithm ever designed.
2. Deliberately one of the slowest.
3. Does not actually provide trustless consensus once 1/3 of the miner nodes decide to collude.
Other than "our data is a merkle tree but you have to trust us to submit transactions to it", and "a currency system with a failed promise to deliver either scale or trustless consensus" what, is the proper application?